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[How-To] Change default application installation location on windows xp

So, you just want to keep a partition for Windows XP and another partition for all your applications that you install. You can change it in all the installations manually but changing the default location is a much better idea. And there are also some applications which don’t let you change the default path.

XP uses the C:\Program Files directory as the default base directory into which new programs are installed. However, you can change the default installation drive and/ or directory by using a Registry hack.

Run the Registry Editor (regedit)and go to

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
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Edit registry without windows

Many a time you will want to edit your registry when you get your windows screwed and it refuses to boot up.
You know what changes should be made in the registry to fix the problem, but you don’t have any way to fix it. I had a similar problem and I used this tool to edit registry:
http://home.eunet.no/pnordahl/ntpasswd/main.html

This is a non-GUI bootable app. You should be familiar with the command-line and how it works before using it otherwise you may get into deeper problems.

This is another tool which I found while googling:

http://www.pcregedit.com/

I hope this helps all you people who are thinking to reformat your computer because of registry errors.

Peace!