What to do if Windows prompts '0x8007045b' error Win10/Win11 system update fault repair

The 0x8007045b error indicates that the system is shutting down/restarting but the service is forcibly called. You need to perform the following steps: disable third-party interference services, reset the firewall and BFE services, run SFC/DISM to repair system files, perform system restore in Windows RE, and modify the TrustedInstaller timeout threshold to 1800 seconds.

If you receive a "0x8007045b" error prompt when performing updates, turning on the firewall, starting services, or running system restore in Windows 10 or Windows 11, this error corresponds to the system-level constant ERROR_SHUTDOWN_IN_PROGRESS , indicating that the system is in the process of shutting down, restarting, or shutting down, but related components (such as TrustedInstaller, CBS, EFS, or firewall services) are still forcibly called, causing the operation to be rejected. Here are the steps to resolve this issue:

1. Stop interference from third-party services and disable unnecessary startup items

Some third-party security software, management agents (such as Lenovo NetInst MgmtAgnt.exe), remote control tools or drivers will actively trigger a restart during system upgrade or service startup, thus interrupting the CBS session and triggering this error. Such services need to be located and terminated.

1. Press Win R and enter msconfig , switch to the "Services" tab, check "Hide all Microsoft services", and click "Disable All".

2. Switch to the "Startup" tab, click "Open Task Manager", and right-click on the "Startup" page one by one to disable suspicious items (especially items containing keywords such as "mgmtagnt", "netinst", "firewall", "guard", and "shield").

3. Restart the computer and verify whether there is still automatic restart behavior in safe mode; if no error recurs, it means the source of interference has been located.

2. Reset Windows Firewall and Basic Filtering Engine Services

When the firewall service (MpsSvc) or its dependent service Base Filtering Engine (BFE) is in an abnormal shutdown state or has residual lock files, the 0x8007045b error will occur. The service status and log cache need to be cleared manually.

1. Run the command prompt as an administrator and execute the following commands in sequence:

2. net stop mpssvc

3. net stop bfe

4. Enter the path C:\WINDOWS\system32\logfiles\firewall\ and delete all files and subfolders in this directory.

5. Execute net start bfe && net start mpssvc to start the service, and check whether the service status is "Running".

3. Perform system file verification and CBS log repair

After the CBS (Component Based Servicing) module fails to update, damaged component databases or pending transactions may remain, causing subsequent operations to be judged as "shutdown in progress." SFC and DISM work together to restore underlying image consistency.

1. Run the command prompt as an administrator, enter sfc /scannow and press Enter, and wait for the scan to complete.

2. After the scan is completed, immediately execute DISM /Online /Cleanup-Image /RestoreHealth to ensure that the Windows image is not damaged.

3. Restart the system after completion to avoid artificial interruption or shutdown during DISM operation.

4. System restore failure caused by bypassing EFS encryption

If the error occurs during system restore and the restore point contains EFS encrypted files, the restore program will report error 0x8007045b because it cannot call the disabled EFS service. Restore must be performed in a Windows RE environment to ensure that the EFS service is available.

1. Run the command prompt as an administrator, enter reagentc /boottore and press Enter to enable Windows RE startup.

2. If it prompts "Windows RE is disabled", run reagentc /enable first, and then repeat the previous step.

3. Restart the computer, enter the Windows RE environment, and select "Troubleshoot" → "Advanced Options" → "System Restore".

4. Select the restore point created during the non-encryption period (or confirm that the restore point does not contain user-encrypted documents) and complete the restore process.

5. Modify the TrustedInstaller timeout threshold to alleviate CBS zombies

When CBS waits for a resource response for a long time, TrustedInstaller's default 15-minute timeout mechanism will trigger a forced restart, causing the installation to roll back and leaving 0x8007045b error traces. Extending the timeout can avoid misjudgments.

1. Open the Registry Editor (regedit) and navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing

2. Right-click on the blank space on the right → New → DWORD (32-bit) value and name it HangDetectTimeout .

3. Double-click the value, set the numerical data to 1800 (unit is second, that is, 30 minutes), and select "Decimal" as the base.

4. Close the registry editor, restart the computer and try the system update or feature enablement operation again.

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