ERROR_INSTALL_TEMP_UNWRITABLE 0x80070660

Error code 1632 · HRESULT 0x80070660

WINDOWS

The Temp folder is on a drive that is full or is inaccessible. Free up space on the drive or verify that you have write permission on the Temp folder.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_INSTALL_TEMP_UNWRITABLE is a Windows error code (system error 1632, returned as HRESULT 0x80070660) reported by Windows. Its official message is: “The Temp folder is on a drive that is full or is inaccessible. Free up space on the drive or verify that you have write permission on the Temp folder.”

How to fix ERROR_INSTALL_TEMP_UNWRITABLE

  1. Run the affected program as administrator (right-click → Run as administrator)
  2. Check permissions on the target resource: Properties → Security → your account
  3. Check Event Viewer → Windows Logs → Security for the matching audit entry
  4. Run the Windows Update troubleshooter (Settings → System → Troubleshoot → Other tools)
  5. Reset update components: stop 'wuauserv' and 'bits', clear C:\Windows\SoftwareDistribution, restart both services
  6. Verify system file integrity with 'sfc /scannow'

Related errors

ERROR_INSTALL_ALREADY_RUNNINGERROR_INSTALL_FAILUREERROR_INSTALL_OPEN_PACKAGE_FAILEDERROR_INSTALL_RESOLVE_DEPENDENCY_FAILEDERROR_CREATE_FAILEDERROR_INSTALL_PLATFORM_UNSUPPORTEDERROR_UNSUPPORTED_TYPE

Source: Microsoft WinError.h

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