How do I clear the Windows Update cache on Win XP SP2

All of my updates are failing to install.  How do I clear my Windows Update cache?
missibm_19Asked:
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knightfoxCommented:
First thing to try:
As many will tell you - ignore the title and symptoms listed in the article
referred to.  Do method 1 and 2 and see if it fixes your issue whether or
not you repaired anything.

http://support.microsoft.com/kb/943144
Try method 1 and try to update*.
If fails - try method  2 and try to update*.

*try to update:
- Visit http://windowsupdate.microsoft.com/
- If it asks you to install anything before you see a selection of "Custom"
or "Express" - do so.
- Once you see the "Custom" or "Express" selection, choose "Custom".
- Scan for updates.
- When it lists what it finds - install the critical ones.
- You are generally safe doing the Optional Software Updates.  I suggest
avoiding the Optional Hardware Updates completely.


Second thing to try:
http://www.codeplex.com/aureset


Third thing to try:
Get Dial-a-Fix:
http://wiki.djlizard.net/Dial-a-fix

Use its options to fix:
- Windows Installer
- Windows Update
- All the Registration Center options.

Turn off the "Empty System32\Catroot 2"
Do NOT do "Flush SoftwareDistribution".

Then click "GO" and wait until it is done...  Reboot will be needed.

- Download/Install Windows Update v3.
http://go.microsoft.com/fwlink/?LinkID=91237
(You *may* need to install it using the command line switch "/wuforce"
right after the reboot - immediately after logging in.)

- Reboot.
- Visit http://windowsupdate.microsoft.com/ and scan for/install updates.


Usually - method one from the first suggestion fixes the issue.
Sometimes they have to proceed to method two from the first suggestion.

Less seldom - but it does happen - only the tool from the second suggestion
will work - although the first suggestion is contained within the second in
many ways (as well as some of the third.)

And the third suggestion is there because before there was a suggestion (1)
and a suggestion (2) - the third was the best bet and worked in most cases.

Let us know!
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LeeTutorretiredCommented:
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