Rebuild or Modify Corrupted Windows Xp boot

You can Modify The Windows XP boot file as follows:

1.Go to C: drive.
2.Select Tools --> Folder Options --> View.
3.In that Tick --> Show hidden Files and Folders.
Untick --> Hide protected Operating system files.
4.Then you will see a boot.ini file in C: dirve
5.Right click that select properties and Untick -->Read only then select Ok.
6.Open the file boot.ini
It should look like this


[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect


7.If you have a corrupted boot.ini file then copy paste the above statements into that file and save it.
8.You can also change the Timeout i.e. the time till which XP loads.

Note:Editing the boot.ini file in haphazard manner can make you system unstable or even unbootable so be careful.