Reinstall OS

[konvict]

As long as they have not stored anything on C:,  I would expect to be able to use them.   
Remember - when you format a partition,  everything is gone.    So when you format C:,  if those apps had stored anything on C:,  then it would be gone.

It would be wise to be sure to have backup copies of everything before you begin.
That includes the install programs/disks of any apps you have,  and also back up any data they use.
You cannot have too many backups.   

i'm sure OS is installed in the c drive.
I've checked my computer,almost all my applications and games have something in the program files folder of the c drive.can i copy the files from the c drive/program files folder related to my applications,and write it to a cd and after installing the new OS can i copy the files back on the program files folder of the new c drive??

[street1 (RIP)]

This is a long thread so,me and old PeckerWood could have
overlooked something.

What is the problem with your present install of XP?

What does it do wrong to lead you to a format?

[konvict]

What is the problem with your present install of XP?

What does it do wrong to lead you to a format?

Its behaving odd.When i boot it,some times it comes up with a BSOD with some error messages,those 0x msgs.
i have to switch off the system completely and restart it after a day.then it boots up normally without BSOD.
Sometimes it loads like forever and some files dont open up.i have to restart the computer and then try opening teh file.
I think i've installed some stupid applications and some stupid games,thats why i'm having this problem...
thats why i decided to reinstall the OS

[street1 (RIP)]

Why not install and run AVG Anti-Virus and AVG Anti-Spyware,
and also run CCleaner?All 3 are freeware and very good programs.

http://www.majorgeeks.com/download886.html

http://www.majorgeeks.com/AVG_Anti-Spyware_d5287.html

http://www.majorgeeks.com/download4191.html

[konvict]

I already have AVG free and ran it also.didnt try cleaner.can i download it from some net cafe and run it on my computer?is it .exe file

[street1 (RIP)]

Yes CCleaner is a   .exe file.

[konvict]

Thanks bro for the info,
I'll try with ccleaner.If it works,that would be wonderful