Exterminate It! Antimalware


Known threats:699,742 Last Update:November 20, 22:46



Suzanne M.

File: WER91.tmp

Location of WER91.tmp and Associated Malware

Check whether WER91.tmp is present in the following locations:

Windows 2000, Windows XP, Windows Server 2003 specific WER91.tmp file locations:

  • C:\Documents And Settings\USER_NAME\Local Settings\Temp\WER91.tmp

Windows Vista, Windows Server 2008, Windows 7, Windows 8 specific WER91.tmp file locations:

  • C:\Users\USER_NAME\AppData\Local\Temp\WER91.tmp

If you find WER91.tmp file in any of these locations, your computer is very likely to be infected with the following malware:

IMPORTANT: Malware files can be camouflaged with the same file names as legitimate files. The WER91.tmp file is associated with malware only if found in the locations listed above.


Why Is It Important to Remove Malware Files?^


  • Dramatically slowing down your computer.

How to Remove WER91.tmp^

  1. To enable deleting the WER91.tmp file, terminate the associated process in the Task Manager as follows:
    • In the Tasks Manager window, click the Processes tab.
    • On the Processes tab, select WER91.tmp and click End Process.
  2. Using your file explorer, browse to the file using the paths listed in Location of WER91.tmp and Associated Malware.
  4. Click Yes in the confirm deletion dialog box.
  5. Repeat steps 2-4 for each location listed in Location of WER91.tmp and Associated Malware.
  6. Notes:


Deleting Locked Files^



To delete a locked file:

  2. Restart your computer.

The file will be deleted on restart.


To remove all registry references to a WER91.tmp malware file:

  1. On the Windows Start menu, click Run.
  3. On the Edit menu, select Find.
  4. In the Find dialog box, type WER91.tmp. The name of the first found registry value referencing WER91.tmp is highlighted in the right pane of the Registry Editor window.
  6. Click Yes in the Confirm Value Delete dialog box.
  7. To delete all other references to WER91.tmp, repeat steps 4-6.