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- Error "The Disk Defragmenter is not installed on your computer" when launching Disk Defragmenter in Windows Vista
Error "The Disk Defragmenter is not installed on your computer" when launching Disk Defragmenter in Windows Vista
- Copyright © 2008 Ramesh Srinivasan
- Error messages
Symptoms
When you open the Properties dialog box for a local hard disk and click the Tools tab, one of the following symptoms may be seen:
- The Defragment Now button is unavailable
- When you click Defragment Now, you receive the following error message:
The Disk Defragmenter is not installed on your computer. To install it, double-click the Add or Remove Programs icon in Control Panel, click the Install/Uninstall tab, and then follow the instructions on your screen.
Resolution
- Click Start, type regedit.exe and press ENTER
- Navigate to the following location:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ explorer \ MyComputer \ DefragPath
- In the right-pane, double-click (default) and set its data as follows:
C:\Windows\System32\dfrgui.exe
- Close Regedit.exe
Automate
To automate the above, you may use the REG file (dfrgfix_vista.reg) attachment below.
Attachments
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3 Responses to "Error "The Disk Defragmenter is not installed on your computer" when launching Disk Defragmenter in Windows Vista" 
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said this on 02 Feb 2007 9:47:55 AM PDT
This is really helpfull. It worked 100%. I was already thinking about reinstalling the OS. Imagine a couple of hours solved in seconds...
Thanks
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said this on 11 May 2007 7:47:47 PM PDT
oh my god this has been driving me crazy searching all over the net for a fix thank you!!!!!
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said this on 24 Jan 2008 9:13:24 PM PDT
I tried editing the registry manually as instructed but the 'MyComputer' entry didn't appear in the path!! ???? Luckily the automated RegEdit file you included worked perfectly. Thanks!
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