Windows will not start after auto update boot; procedure entry point errors before desktop.

This is an antique system, but it's the one I prefer using, so I hope it's so old that everyone knows how to solve problems in it. Modified hp Pavilion 325c HDD almost all other hardware changed years ago WinXPH-SP3, auto updates Spybot auto updates auto

scans scheduled Avast auto updates auto scans scheduled CCleaner auto I rarely boot the machine, but last night it seemed slower than normal, so before bed, I booted. I barely noticed the pending update symbol on the shutdown menu, and just hit restart before

immediately turning the monitor off. I had just been browsing forums like this as usual (no other installs in the past few days, or any ****/gaming/P2P sites), so I can't think of anything I did that would have caused a problem. This morning, I found a blank

desktop with a warning window saying the procedure entry point ReleaseSRWLockExclusive could not be located in KERNEL32.dll . Clicking OK (the only option) brought an almost-identical warning, this time about ObjectStublessClient29 in ole32.dll . Clicking

OK there causes the system to reboot. My BIOS appears normal. LastKnownGoodConfiguration produces exactly the same results. SafeMode does too. I can get into the repair console using a W2KP install disk, but I don't really know what to do once I'm there. Being

familiar with the VERY early versions of DOS, I'm surprised the reported file sizes for C:io.sys, msdos.sys, and several other critical system files is reported as 0, and the TYPE command says they can't be opened, but IDK if that's a significant part of

this problem. I never had an XP install disk for this machine since it was a used/return/clearance at my local Sam's Club. I've also found C:windowssystem32kernel32.dll and ole32.dll, and their reported filesizes are ~1M each. Kernel's date is '09, and

ole's is '11, so they don't appear to have been replaced recently. There are several hidden subdirectories of C:recycler including nprotect (Isn't that a Norton folder? He's uninstalled.) containing a lot of .DLL files, but their names have been changed to

numbers so I can't easily see if any of them is a previous version of the indicated files. I have to assume the Windows auto update caused this, but can you confirm it before I go thru the hassle of fighting MS over it? Is there an easier fix? I have a WinXPP-SP3

system, but it has been even slower over the past year or so, and I only use it for e-mail background music. Currently, I'm on a Vaio PCV-RS710G running WinXPH-SP3 (similar to the problem machine). It was bought new full-retail and hasn't been modded, but

I can't remember if I have install disks for it. I have a Sony recovery DVD Ver.V128.0 for it.

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