Reinstall Windows Without Losing Anything

How To Reinstall Windows Without Losing Anything
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You can use this method as often as you like when you need to repair something that had gotten corrupted and you don't want to do a clean install.
This is better than doing a windows repair install.
1- Start WindowsXP
2- Go to the location of your source files
3- Run WINNT32 /unattend
For example, ur drive letter:\I386\winnt32 /unattend ( copy & paste this command into the RUN box, then press ENTER ) Your computer will do the rest.
OR
Start > All Programs > Accessories > Command Prompt.
Copy & paste > ur drive letter:\I386\winnt32 /unattend (notice the space between 32 and / )
Press Enter.
If you have i386 on your drive, you can replace D: ( ur drive letter: is your cd drive letter ) with the location of it. (be sure it's the full i386 though)
if ur drive letter:\I386\winnt32 /unattend doesn't work then try : ur drive letter:\winnt32 /unattend.