Problem: When loading webpages, blank pages often appear with status "done". Multiple refreshes are required, and pages load slowly with the status "connecting to..." which was not the case previously. Even when accessing default router gateway, it is slow.
My diagnostic attempts: Wireless usb adapter not the cause as problem is replicated using lan cable. Other computers on the router are working fine.
Events prior to problem:
1)Ran recovery console, "chkdsk /p" and "fixboot" to repair endless booting loop.
2) Used "Ccleaner" program to remove temp files and repair registry errors.
3) Defrag, but aborted after 18 hours as progress was only 30%.
Intel P4 2.4ghz
nvidia geforce 6600
Windows xp home sp2