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Change the Location of the Temporary Files Folder (Standard 7 SP1)

7/8/2014

You can improve Enhanced Write Filter (EWF) performance on a run-time image by changing the temporary files location to a different partition that is not EWF-protected. By default, temporary Internet files are stored in the %USERPROFILE%\AppData\Local\Microsoft\Windows folder.

  1. Modify one or both of the following registry keys on your run-time image:

    • Key: HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Explorer\User Shell Folders
      Name: Cache
      Type: REG_EXPAND_SZ
      Value: <path_to_a_folder_on_an_unprotected_volume>
    • Key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
      Name: Cache
      Type: REG_EXPAND_SZ
      Value: <path_to_a_folder_on_an_unprotected_volume>
  2. You can also redirect the TMP and TEMP folders to an unprotected volume by modifying the following registry settings:

    • Key: HKEY_CURRENT_USER\Environment
      Name: TEMP
      Type: REG_SZ
      Value: <path_to_a_folder_on_an_unprotected_volume>
    • Key: HKEY_CURRENT_USER\Environment
      Name: TMP
      Type: REG_SZ
      Value: <path_to_a_folder_on_an_unprotected_volume>

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