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KB5074105 Storage Admin Access in Windows 11: Full Guide

BySharfunnahar Radia
Published02 Feb, 2026
KB5074105 Storage Admin Access in Windows 11: Full Guide
Sharfunnahar Radia02 Feb, 2026

Why Does Windows 11 Storage Settings Now Require Administrator Permission?

KB5074105 Storage Settings introduced an additional administrator approval prompt in Windows 11. Microsoft released the optional preview update on January 29, 2026, for Windows 11 versions 24H2 and 25H2. After the change, opening Settings > System > Storage can trigger User Account Control (UAC), asking users to approve an operation that requires elevated permissions.

Microsoft documented the change on January 30 and explained that its purpose is to help restrict access to system files to authorized users.

The important distinction is that this is an intentional Windows behavior, not automatically evidence of a broken installation.

For users who previously opened Storage Settings without seeing a permission dialog, the change can be confusing. A normal disk-space check may suddenly involve an administrator approval request.

That difference matters most on shared computers, workplace devices, and systems where everyday users do not have administrator privileges.

Quick Summary

Question

Answer

What update introduced the change?

KB5074105

When was it released?

January 29, 2026

Which versions were covered?

Windows 11 24H2 and 25H2

What changed?

Opening Storage Settings triggers a UAC prompt

Is the prompt intentional?

Yes, Microsoft documents it

Is KB5074105 a security update?

No, it is classified as a non-security preview update

Is a UAC prompt evidence of malware?

No, not by itself

Should users disable UAC?

Generally, no

Microsoft's update documentation also explains that some Windows features are delivered through gradual rollout. Consequently, differences between devices do not necessarily indicate that an update failed.

What is Windows 11 KB5074105?

KB5074105 is an optional cumulative preview update released for Windows 11 versions 24H2 and 25H2.

Microsoft designed the release to deliver quality improvements, reliability fixes, and selected functionality changes ahead of the normal monthly servicing cycle.

The update corresponds to two Windows builds:

Windows version

KB5074105 OS build

Windows 11 24H2

26100.7705

Windows 11 25H2

26200.7705

Microsoft also released earlier builds associated with KB5074105 to Windows Insiders on January 27, 2026. Those Insider builds should not be confused with the later public preview build numbers.

Although KB5074105 contains security-related improvements, Microsoft classifies the January release as a non-security preview update.

This distinction is important because security-related functionality and a formal security update are not interchangeable terms.

For example, a Windows update can change permission handling without necessarily addressing a publicly identified vulnerability.

What Else Did KB5074105 Change?

Microsoft's official release notes describe several improvements beyond the Storage Settings permission prompt.

These include fixes involving desktop icon movement, Windows Terminal elevation behavior, Windows Sandbox startup problems, certain graphics-related failures, and other system reliability issues.

The update also documented changes involving Secure Boot and Data Protection API domain backup key management.

Some features originally mentioned in the release documentation were subsequently removed from the January update's feature list and planned for future releases.

For this reason, readers should use Microsoft's maintained support page rather than relying entirely on the original January announcements.

What Changed in Windows 11 Storage Settings After KB5074105?

Before KB5074105, users could generally navigate to the Storage page without encountering this newly documented elevation request.

With the update, Windows introduced a UAC prompt when the Storage page opens.

This changes the interaction between the Settings interface and the Windows permission system.

The difference is particularly noticeable when a user only wants to check available disk space.

Storage Settings Before and After the Update

Feature

Before KB5074105

After KB5074105

Opening Storage Settings

Generally did not trigger this specific prompt

UAC prompt is documented

Administrator approval

Not normally needed just to open the page

Elevation may be requested

Standard user experience

Could generally enter the page directly

May need administrator credentials for elevated operations

Windows file permissions

Existing access rules applied

Existing access rules continue to apply

Storage cleanup interface

Existing functionality

Some differences have been reported

It would be inaccurate to conclude that every standard user is completely prevented from viewing every Storage detail.

Microsoft documents the new UAC prompt but does not provide a comprehensive feature-by-feature list showing precisely which Storage information remains accessible after elevation is denied.

One Microsoft Q&A user even reported that the Storage page remained accessible after selecting No, although that individual experience does not establish consistent behavior across all devices.

The confirmed change is the new elevation request. The precise effect on individual controls can depend on the operation and Windows configuration.

Why Did Microsoft Add Administrator Access to Storage Settings?

Microsoft's stated objective is to help ensure that only authorized Windows users can access system files.

Storage-related operations can involve more than displaying available capacity. Windows also provides mechanisms for managing temporary files, removing certain system-generated data, and maintaining disk space.

Some of these operations involve resources that require elevated privileges.

By introducing a UAC request at this point in the interface, Windows can require additional authorization before proceeding with privileged work.

However, Microsoft's documentation does not establish that simply displaying a storage breakdown previously created a particular exploitable vulnerability.

It also does not identify a specific malware campaign or Common Vulnerabilities and Exposures (CVE) entry as the reason for this change.

How User Account Control Protects Windows

User Account Control is an established part of Windows security.

It helps restrict actions requiring administrator privileges and asks users to approve or authenticate elevated operations.

Microsoft explains that applications generally run with standard permissions unless an operation requires an administrator access token.

An administrator account can normally approve an elevation request. A standard account generally needs valid administrator credentials for the operation.

Consider a computer shared between a parent and a child.

The parent manages the computer using an administrator account, while the child uses a standard account.

When an operation requires higher privileges, Windows can request authorization rather than allowing the standard account to perform that operation automatically.

The same principle applies in organizations where employees use standard accounts and IT administrators control privileged actions.

The important security benefit comes from requiring authorization for elevated operations, not from assuming that anyone opening the Settings application is automatically dangerous.

How Does the KB5074105 UAC Prompt Work?

When a user opens the Storage page, Windows can display a User Account Control dialog.

On a typical administrator account, the prompt asks the user to approve the requested operation.

On a standard account, the prompt may require administrator credentials instead.

This behavior follows the broader UAC permission model documented by Microsoft.

What Happens If You Select Yes?

For an administrator using a normal consent prompt, selecting Yes authorizes the elevated operation.

The operation can then proceed using the permissions available to the administrator.

That does not mean every process on the computer becomes permanently elevated.

UAC authorization is tied to the operation or process receiving elevation.

What Happens If You Select No?

Selecting No denies the requested elevation.

An operation that requires those elevated privileges cannot proceed with that authorization.

However, denying elevation does not necessarily mean the entire Settings application will close.

Depending on the implementation, some nonprivileged information or controls may remain available.

Microsoft does not provide a complete Storage-specific behavioral matrix in the KB5074105 release notes, so descriptions of every possible outcome should be treated cautiously.

What Happens on a Standard Account?

A standard account does not automatically possess the privileges required for administrative operations.

If Windows requests administrator credentials, users should obtain approval from the person or organization responsible for managing the device.

On a company-owned computer, this generally means contacting the IT department.

Using another person's credentials without permission or changing security policies to avoid authorization is not an appropriate workaround.

How to Check Whether KB5074105 is Installed

Before troubleshooting, confirm which Windows version and update you are investigating.

A UAC prompt can be influenced by Windows configuration, device-management policies, and subsequent updates.

Step 1: Check Windows Update History

Open:

Settings > Windows Update > Update history

Look for KB5074105 in the relevant update history.

Microsoft provides Update history as the standard location for reviewing installed Windows updates.

If the update is listed, compare its installation date with the date the new Storage behavior first appeared.

A close match supports a connection, although timing alone does not prove every other symptom was caused by the update.

Step 2: Check Your Windows Build

Press Windows + R, enter winver, and press Enter.

The Windows version dialog displays the installed version and OS build.

For the original KB5074105 preview release, the corresponding builds were 26100.7705 and 26200.7705.

If your system shows a later build, that does not necessarily mean the Storage permission change has disappeared.

Windows cumulative updates can incorporate previously released changes.

For a complete picture, compare the current build against Microsoft's Windows release history.

Step 3: Reproduce the Behavior

Open Settings, select System, and then open Storage.

Observe whether Windows displays a UAC prompt.

If a prompt appears, read its details before approving it.

A request associated with the Windows Settings application during this specific workflow is consistent with the behavior Microsoft documented.

An unexpected elevation request from an unfamiliar application deserves closer investigation.

How to Fix the Windows 11 Storage Settings Administrator Prompt

The first troubleshooting step is understanding whether the prompt represents expected behavior or a separate access problem.

Because Microsoft intentionally introduced the Storage elevation request, attempting to eliminate it through system repair commands is not automatically appropriate.

A properly functioning computer may show this dialog.

Solution 1: Approve the Prompt When Appropriate

If you are using an authorized administrator account, review the UAC dialog.

Confirm that the request is associated with the operation you initiated.

If the details are consistent with Windows Settings and you intend to proceed, approve the request.

The Storage page or elevated operation should then continue according to the system's configuration.

If Windows still refuses access after approval, record the error message and investigate that specific failure rather than assuming the prompt itself is the problem.

Solution 2: Request Administrator Permission

If you use a standard account, the correct solution may be to obtain administrator authorization.

This is particularly important on computers managed by employers, schools, or other organizations.

Administrators may use centrally managed policies to determine which operations users can perform.

Users should not change those policies independently simply to make a permission prompt disappear.

Solution 3: Check Whether the Problem Is Actually Storage Access

A UAC prompt is different from an application crash.

If the Storage page loads after authorization, the elevation process may be functioning as intended.

If the page freezes, becomes unresponsive, or displays a separate error, that is a different troubleshooting problem.

Record the Windows version, build number, exact error, and whether the failure occurs before or after approving UAC.

This information helps separate permission-related behavior from application or update failures.

Solution 4: Keep Windows Updated

If you experience an actual malfunction, review the latest supported Windows updates and Microsoft's release-health information.

Later cumulative updates may contain fixes for unrelated problems.

However, installing a newer update should not be described as a guaranteed way to remove the Storage UAC prompt.

Microsoft has documented the prompt as an intentional change, not as an issue awaiting a general rollback.

Can You Disable the KB5074105 Storage UAC Prompt?

Microsoft documents general UAC configuration options.

However, its KB5074105 release notes do not identify a dedicated setting that disables only the Storage elevation prompt while preserving all other UAC protections.

This distinction matters because changing Windows-wide UAC behavior affects more than Storage Settings.

Why Disabling UAC is Not Recommended

Windows provides several UAC notification levels.

One option, Never notify, disables UAC notifications.

Microsoft explicitly warns against using this option because of security concerns.

Reducing security controls simply to avoid an expected prompt is a poor trade-off.

A better response is to determine whether the requested action genuinely requires elevation and whether the account has the appropriate permissions.

Organizations should review permission policies with their administrators rather than applying broad changes across managed devices.

KB5074105 Temporary Files Cleanup Issue: What is Confirmed?

The new Storage prompt is not the only behavior discussed after the update.

Windows Latest reported problems involving the Temporary files cleanup interface after installing KB5074105.

In its testing, some cleanup categories, including Windows Update Cleanup, were not displayed in the Settings interface.

The publication also reported that those categories remained available through the traditional Disk Cleanup utility.

A separate Microsoft Q&A user described difficulty removing some temporary files following the update.

These reports deserve attention, but they should not be treated as proof that every installation is affected.

Is the Temporary Files Problem a Microsoft-Confirmed Bug?

Microsoft's maintained KB5074105 support page states that it is not currently aware of known issues with the update.

That official statement is separate from the behavior described by individual users and third-party publications.

The public evidence supports describing the cleanup behavior as a reported issue.

It does not establish a universally confirmed failure affecting all Windows 11 computers.

Similarly, the available documentation does not establish a definitive technical root cause for every missing cleanup category.

How to Clean Temporary Files If Storage Settings is Not Working

If the Temporary files interface does not display an expected cleanup category, Windows provides another built-in option.

Microsoft documents Disk Cleanup as a supported way to remove temporary files and certain system files.

Use Windows Disk Cleanup

Follow these steps:

  1. Open Windows Search.
  2. Type Disk Cleanup.
  3. Open the Disk Cleanup application.
  4. Select the drive you want to examine.
  5. Review the available cleanup categories.
  6. If necessary, select Clean up system files.
  7. Approve any required administrator authorization.
  8. Carefully select the categories you intend to remove.

Microsoft's official storage-management guidance includes this procedure.

Do not select unfamiliar categories without understanding their purpose.

For example, deleting previous Windows installation files can remove an option to return to an earlier installation.

The presence of a cleanup category also does not mean it must be deleted immediately.

Check Storage Sense

Storage Sense is another Windows feature designed to help manage disk space.

Depending on its configuration, it can remove certain temporary files and manage items in the Recycle Bin.

Microsoft explains that Storage Sense primarily operates on the system drive and that its behavior depends on the configured cleanup preferences.

Files in Downloads and cloud-storage locations are not automatically managed in every configuration.

If users cannot access Storage Sense settings because of permission restrictions, they should request authorized assistance.

Storage Sense should not be presented as a way to bypass administrator approval.

How to Check Disk Space Without Opening Storage Settings

Users who only want to check available disk space do not necessarily need the detailed Storage Settings page.

Windows File Explorer offers a simpler method.

Open File Explorer and select This PC.

Under Devices and drives, Windows displays information about connected drives, including available storage space.

Microsoft lists this as a standard way to check remaining disk capacity.

This alternative is particularly useful when someone needs only the remaining free-space figure.

It does not provide every advanced cleanup and storage-management option available through Settings.

That limitation is expected because viewing drive capacity and performing privileged maintenance are different activities.

For organizations, the distinction also offers a practical workflow improvement.

Help-desk personnel can determine whether a user needs basic capacity information or genuinely requires a privileged maintenance action.

Not every storage-related question needs an administrator to access detailed system controls.

How KB5074105 Affects Business and Managed Computers

The Storage elevation change is especially relevant to environments using standard user accounts.

Organizations often limit administrative privileges to reduce the risk of unauthorized configuration changes.

When a familiar Windows interface begins requesting elevation, employees may believe something is wrong.

Without clear communication, they may repeatedly attempt the same operation or report a security problem that is actually expected behavior.

IT teams should explain the change and establish a suitable support process.

What IT Administrators Should Test

Administrators can evaluate the change using a controlled test device.

Useful checks include:

  • Opening Storage Settings from administrator and standard accounts.
  • Observing the behavior after denying a UAC prompt.
  • Reviewing Temporary files cleanup categories.
  • Testing Disk Cleanup with appropriate permissions.
  • Confirming that existing help-desk instructions still work.
  • Recording the operating system build and relevant device policies.

These are recommended validation activities, not claims that every listed workflow is broken.

Administrators should test representative configurations before making broad policy changes.

Does the Change Affect PowerShell and Monitoring Tools?

The KB5074105 documentation confirms a UAC change associated with opening Storage Settings.

It does not establish that every PowerShell storage command, monitoring application, or inventory tool now requires additional permissions.

Such tools may use different Windows APIs and security contexts.

Their behavior must therefore be tested individually.

Assuming that a Settings interface change automatically modifies every storage-management API would go beyond the available evidence.

Does KB5074105 Create a New Windows Security Vulnerability?

No specific newly discovered vulnerability is established by the documented Storage elevation change.

Microsoft describes an additional authorization measure.

That is different from announcing a newly identified exploitable weakness.

The official Storage change is not accompanied by a CVE identifier, identified threat actor, or documented attack campaign.

It would therefore be misleading to describe the UAC prompt itself as an active security incident.

What Security Benefit Does the Change Provide?

The intended benefit is better control over operations associated with protected system resources.

UAC can require elevated authorization before an operation proceeds.

That supports a security model in which applications and users do not automatically receive administrator-level permissions.

However, UAC is only one layer of Windows protection.

It does not replace file-system permissions, antivirus protection, device-management policies, or the need to install supported security updates.

Microsoft describes UAC as a mechanism for reducing unauthorized changes rather than a complete defense against every possible attack.

Should You Uninstall KB5074105?

The appearance of the expected Storage UAC prompt is not, by itself, a strong reason to uninstall an update.

Users should first determine whether they are dealing with a documented behavior change or an actual malfunction.

For a separate problem that began after installing an update, Microsoft's troubleshooting guidance includes reviewing Update history and, in appropriate circumstances, uninstalling a problematic update.

However, Microsoft also explains that some updates cannot be uninstalled.

Removing updates can introduce security and reliability concerns, particularly when later cumulative updates contain additional fixes.

For devices running newer Windows builds, removing the original January preview package may not be possible or appropriate.

Users should evaluate the current installed update rather than assuming the original KB remains independently removable.

On business devices, update removal should follow the organization's change-management and recovery procedures.

Frequently Asked Questions

Is the KB5074105 Storage Settings administrator prompt a bug?

Microsoft documents the new UAC prompt as an intended behavior. A prompt appearing when opening Settings > System > Storage is therefore not automatically a bug. Separate symptoms, such as freezing or unexpected cleanup failures, require individual investigation.

Can I access Windows 11 Storage Settings without administrator rights?

Some nonprivileged information may remain accessible, but operations requiring elevation need appropriate authorization. Microsoft has not published a complete Storage-specific list of what standard users can access after denying the prompt. For basic free-space information, File Explorer > This PC is an alternative.

Why does Windows 11 ask for administrator permission just to check storage?

KB5074105 added a UAC request when opening Storage Settings. Microsoft states that the change is intended to help restrict access to system files to authorized users. Checking free disk capacity through File Explorer does not require using that detailed Settings interface.

Does KB5074105 permanently change Windows 11 permissions?

The update documents an additional UAC prompt associated with Storage Settings. It does not establish that all file permissions have been permanently changed or that every storage-related operation now requires administrator privileges.

What Happens Next?

KB5074105 was originally released in January 2026, and Windows servicing has continued since then.

Microsoft's maintained support documentation still includes the Storage UAC change as of this research update.

However, the precise behavior of future Windows releases should be checked against their own official release notes.

Microsoft has not provided a Storage-specific removal date or a confirmed replacement design in the sources reviewed for this article.

Users should therefore treat the documented elevation behavior as part of the supported Windows experience unless subsequent Microsoft documentation states otherwise.

For a broader explanation of how changes move between Windows releases, see Hoplon Infosec's Windows 11 cumulative update guide.

Hoplon Infosec Insight: What Users and Administrators Should Do

The practical lesson from KB5074105 is that an unexpected permission prompt does not always mean Windows has developed a new problem.

Sometimes, the operating system's security requirements have changed.

The most useful response is to verify the change before attempting to repair or disable anything.

Recommended approach:

For home users, confirm the Windows build, review the UAC prompt, and use File Explorer when you only need to see available disk capacity.

For standard users, obtain administrator permission when an operation genuinely requires it.

For IT administrators, document the expected behavior, test relevant maintenance workflows, and avoid weakening system-wide UAC settings to eliminate one prompt.

For users experiencing missing cleanup categories, compare the Storage interface with Microsoft's supported Disk Cleanup functionality.

Above all, separate a documented Windows security change from an independently reported software problem.

Conclusion

The KB5074105 Storage Settings change added a User Account Control prompt to the Windows 11 Storage interface as part of the January 29, 2026 preview update for versions 24H2 and 25H2.

Microsoft confirms that the change is intended to help protect access to system files.

The prompt itself is expected behavior, while reported problems involving Temporary files cleanup require separate evaluation.

Users do not need to disable Windows security protections simply because Storage Settings now requests approval.

The sensible approach is to verify the installed update, understand the requested permission, and use supported Windows tools when troubleshooting.

References

  1. Microsoft Support: KB5074105 Official Release Notes
  2. Microsoft Learn: How User Account Control Works
  3. Microsoft Support: User Account Control Settings
  4. Microsoft Support: Free Up Drive Space in Windows
  5. Windows Latest: KB5074105 Storage and Temporary Files Reporting
  6. Microsoft Q&A: Storage UAC Prompt Discussion

 

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