Starting with Windows 2000, Microsoft provided a mechanism to define which utilities are used for backup, disk error checking, disk cleanup, and disk defragmentation.
The default utilities are defined by the following registry entries, even though some are not present and are invoked by default:
Key Name: SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\BackupPath Name:The easiest way to define these defaults, but preserve your existing entries, is:Type: REG_EXPAND_SZ Data: %SystemRoot%\system32\ntbackup.exe Key Name: SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\ChkDskPath Name: Type: REG_EXPAND_SZ Data: %systemroot%\System32\CHKDSK.EXE Key Name: SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\cleanuppath Name: Type: REG_EXPAND_SZ Data: %SystemRoot%\system32\cleanmgr.exe /D %c Key Name: SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\DefragPath Name: Type: REG_EXPAND_SZ Data: %systemroot%\system32\dfrg.msc %c:
1. Run regedit /a oldutil.reg "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer" to export your existing settings.
2. Copy / Paste the following to a Util.reg file:
REGEDIT4 \[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\] \[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\BackupPath\] @=hex(2):25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,5c,6e, 74,62,61,63,6b,75,70,2e,65,78,65,00 \[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\ChkDskPath\] @=hex(2):25,73,79,73,74,65,6d,72,6f,6f,74,25,5c,53,79,73,74,65,6d,33,32,5c,43, 48,4b,44,53,4b,2e,45,58,45,00 \[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\cleanuppath\] @=hex(2):25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,5c,63, 6c,65,61,6e,6d,67,72,2e,65,78,65,20,2f,44,20,25,63,00 \[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\DefragPath\] @=hex(2):25,73,79,73,74,65,6d,72,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,5c,64, 66,72,67,2e,6d,73,63,20,25,63,3a,003. Merge the Util.reg file with your registry or run regedit /s Util.reg.
4. Run regedit /s oldutil.reg.to import your previous settings.
5. You can now easily use the Registry Editor to change any of these utilities.
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