Some Win7 updates won't install. Can't install SP1 or Win 7 Upgrade

I've a customer whose Win 7 Home 64 bit won't install all the updates. He's got a list of ~24 updates that, when installed, results in error code 8007371b or 80073712.

I've run SFC successfully with no errors as well as AntiMalwarebytes. Also ran MS Fixit 8025769253168492.4.1 which said it found 2 errors and fixed them (but it didn't really). Curiously, when I ran this util in Safe Mode, it reported back that two errors were found but only one could be fixed.

Also ran MS Fixit 50123 successfully.

Downloaded and ran the Update System Readiness Tool which found no errors to fix.

Booted in Safe Mode and also in Clean boot. Still could not successfully install the updates.

The Windows Update troubleshooter was run but it too didn't fix the problem.

Customer had tried the Upgrade route from an ISO he made and it ran to about 75% completion but then failed. He said the failure point happened when the upgrade was installing applications (???? ) or something like that.

I want to re-run the upgrade, but what I want to know is, is there something else I could check prior, something that help me identify the problem. TIA

Oh, one more thing. When the upgrade failed for the customer, the error message referenced lack of disk space. However, he's clearly enough space (~800 Gb). He couldn't remember the exact wording but the message stated something similar to "not enough disk space to install the applications."

Try installing one at a time, starting with the oldest, and rebooting whenever requested before going to the next?

I tried updating single files at random. No go. BTW: The customer was in contact with Microsoft. He was assured they would find a solution ... they essentially gave up at 3 days of attempts.

There is a newer fix it than the one that was run: Fix the problem with Microsoft Windows Update that is not working

Hey, thanks for the info. I'll pass that onto the customer. Not sure if he wants me to run it so it maybe awhile before I have any news of the outcome. Thx!

You're welcome. Whenever you are able to post back, we'll be notified and respond. :)

Another option is to reset the Windows updates: How do I reset Windows Update components? See if resetting the updates resolves the problem downloading/installing them.

If the above does not work, 8007371b, I suggest that you start your own thread to get more dedicated help with your specific problem.

My customer ran the latest update fix suggested by writhziden but it still didn't fix the problem. The tool apparently fixed some location issues but nothing more. His oldest unsuccessful update is KB2207566. Is this (lack of) update creating the bottleneck?