ERROR_INSTALL_SERVICE_SAFEBOOT 0x80070674
Error code 1652 · HRESULT 0x80070674
The Windows Installer service is not accessible in Safe Mode. Please try again when your computer is not in Safe Mode or you can use System Restore to return your machine to a previous good state.
What it means
ERROR_INSTALL_SERVICE_SAFEBOOT is a Windows error code (system error 1652, returned as HRESULT 0x80070674) reported by Windows. Its official message is: “The Windows Installer service is not accessible in Safe Mode. Please try again when your computer is not in Safe Mode or you can use System Restore to return your machine to a previous good state.”
How to fix ERROR_INSTALL_SERVICE_SAFEBOOT
- Run the affected program as administrator (right-click → Run as administrator)
- Check permissions on the target resource: Properties → Security → your account
- Check Event Viewer → Windows Logs → Security for the matching audit entry
- Run the Windows Update troubleshooter (Settings → System → Troubleshoot → Other tools)
- Reset update components: stop 'wuauserv' and 'bits', clear C:\Windows\SoftwareDistribution, restart both services
- Verify system file integrity with 'sfc /scannow'
Related errors
Source: Microsoft WinError.h
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