I have change directry with reg edit now impossible to uninstall a program and cannot sett advance adjustment system

I have change directry with reg edit now impossible to uninstall a program and cannot advance the system put forward sett it was drive c was my default directry, but I put as a default and no command does command-line pls tell me how to set the drive c again as defaulat I use vista. can't open the registry.

I have no backup also cannot restore

Hello

(1) why you did registry change?

(2) you receive an error message when you try to uninstall the program?

(3) do you have with you Windows Vista installation disc?

I suggest trying this method and try to install the program.

Problems with programs that cannot be installed or uninstalled. http://support.Microsoft.com/mats/Program_Install_and_Uninstall

If the problem persists always, respond with more information for you to help.

Tags: Windows

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