Reinstalling windows? read this first

If your Windows installation is gone all bad because of thousands of application install/uninstalls, non working file associations,regular crashes at inconvenient times and most likely viruses, all you think of doing is reformatting your operating system and start working again.
But it takes at least 45 minutes to reinstall windows xp sp2 (in case of vista it takes hours) and that's a lot of time.
But is there any way around?
Yes there is one full proof way of making your windows work "like new installation" in less than 5 minutes.You dont need reinstall windows xp.
Here are the steps to follow.

• Back up all your files
• Log on as a different user on the machine
• goto Properties-> Advanced Settings(check above image)
• Delete your user profile
• Log on as your old user account
• All your files will be gone (i told you to back up, didn't i?)
  

Now you will have a clean registry, and as far as all applications are concerned, you are a new user.
Now you can continue the same application install/uninstall series until you get bogged down again.

XP boot problems

If you have used windows XP then you surely have experienced one or more boot problems.
here i have listed most frequent boot failure problems and have also tried to provide the answers for the same.
i hope you will find this useful.

1.when you first power on your pc , the bios after completing its routines examines the MBR(master boot record) and starts booting sequence.
At this point sometimes boot failure occurs.
fix: insert windows XP CD , choose repair and enter "FIXMBR"

2. next step is to call NTLDR(NT loader) this in turn loads "boot.ini" if this file is missing a
message "NTLDR is missing" gets displayed . i think most are familiar with this error.
fix: enter "fixboot.c" after choosing repair and copy "NTloader" from setup CD.

3. in case multiple operating systems the boot menu gets displayed. then the user is asked to
select one.
the message "boot.ini" gets displayed
fix: enter "bootcfg/rebuild after choosing repair.

4. Then all the installed hardware components are checked (if you want to see this process
disable the splash screen)
"NTdetect not found"
fix: enter windows disk and copy "\i386\ntdetect"

5. Loading of kernels
" Bluescreen of death"
fix: enter setup disk and select repair. then repair boot partition.
if this fails reinstalling windows is only solution.

6. Next step is to load all the device drivers.
" Bluescreen of death"
fix: boot windows in safe mode. then remove the faulty driver/s .
i faced this problem not too long ago with my TV tuner card and the solution is to remove
the hardware.

7. windows hangs at "windows is booting...."
fix: turn off the pc and go to microsoft website.
You will find about a billion problems with solutons.

8. windows services startup.
" Bluescreen of death"
cause: viruses
fix: boot in safe mode , remove the virus and repair windows.

9. incorrect password
fix: use a password recovery disk.(search GOOGLE for the s/w i wont tell you)
don't use this if the pc doesn't belong to you.

10.from here onwards no specific solution is available.
bluescreens will rain upon you , system will hang on its own and much more...
fix: innumerable fixes
go to run>msconfig>startup and clear non responding auto starts.

10.