File Manager or Backup Manager fails for all domains: Directory does not exist or isn’t writable: C:Program Files (x86)PleskPrivateTemp

Symptoms

• Error when accessing Subscriptions > Subscription name > File Manager in Plesk UI:

  Unable to find the directory C:Inetpubvhostsdomain.tld: filemng failed: plesk_exec_with_response("C:Program Files (x86)Pleskadminbinfilemng" test list dirs C:Inetpubvhostsdomain.tld) failed: Unable to execute plesk_exec_with_response: Unable to start ("C:Program Files (x86)Pleskadminbinfilemng.exe" test list dirs C:Inetpubvhostsdomain.tld): (267) The directory name is invalid.<br> at Plesk impersonation(PipeServer::ServerThread::runAs line 751)<br> at (zif_plesk_exec_with_response line 1140)
  File FileManagerController.php
  Line 1059
  Type PleskUtilException)

• Unable to open Tools and Settings > Backup Manager

  500 Directory does not exist or isn't writable: C:Program Files (x86)PleskPrivateTemp

• Unable to activate a suspended reseller with the error:

  Unable to load object of type PhDomain with id=112: Turn on domain failed: Directory does not exist or isn't writable: C:Program Files (x86)PleskPrivateTemp

Cause

Incorrect permissions on C:Program Files (x86)PleskPrivateTemp or the folder is missing.

Resolution

1. Connect to the server via RDP

2. Check if the necessary directory exists (paste the line %plesk_dir%PrivateTemp to the address bar of the Windows Explorer)

3. Restore permissions on the directory to the default values: