Can't install CheckSUR (System Update Readiness Tool) --- (log+screencast)

Hello everyone,

I'm having stubborn corruption issues on my Windows 7 Ultimate 64bit. I have tried hard to solve this for almost 2 weeks now, without success..
I'm a bit surprised/offended to find myself being forced to resort to specialized forums like this one to fix my problem because I usually always find a way of my own. But this time I will need you guys.

My problem is very similar to zac1 on this thread, whom receive great help from Rkinner: Windows 7 will not update - Geeks to Go Forums
I'm fairly good at digging into Windows OS so I'll be able to follow your instruction very easily, without having you to be extremely detailed and to describe any common IT terms.


Problem
========
- Corrupt system files which leads to problem installing/uninstalling applications, windows update, ssd firmware, basically anything that require deeper system's integration.
- sfc scan find corrupt files but can't fix them all.



Troubleshoot done so far
========================
- Scanned for presence of any malwares/virus/rootkit. Result --> none
- Uninstalled/Reinstalled corrupt applications Result --> Sucess, but had to uninstall the dirty way (Revo uninstaller and manual registry left-over removal)
- Installed all missing .NET Framework & Visual C++ Redistributables
- Registry scan/clean (CCleaner, Little Registry Cleaner, and such) Result --> Many problem found/fixed, without real improvement.
- sfc scan (sfc /scannow)
- checkdisk scan (chkdsk /f /v /r /x /b)
- Reset system's default permission using Tweaking.com's tools (and some manual manipulation)



Generated logs: *list of all generated log files (*all done with elevated administrator privilege:
===============
- sfc scan ---> https://www.dropbox.com/s/h24h371z1y...scan log.txt (or see attached file)
- chkdsk scan ---> https://www.dropbox.com/s/7e45yw9e7j9dpgw/chkdsk.txt (or see attached file)
- OTL scan ---> can't complete a scan because of infinite loop on the AppData directory ---> http://screencast.com/t/C83Rut1Bnqgt
- CheckSUR ---> can't install the System Update Readiness Tool either but was able to get some log: https://www.dropbox.com/s/ld02wwmlv1...0313224512.cab (file is too big to attach)
- SFCFix 2.1.4.0 by niemiro --> https://www.dropbox.com/s/3xtnphhfszt7x5u/SFCFix.txt (or see attached file)

View attachment Checksur install eventlog.txt

View attachment chkdsk.txt

View attachment sfc scan log.txt

View attachment SFCFix.txt

Here's what happen when I try to install CheckSUR --> screencast.com/t/U7SNiLXY
As you can see I can extract the content of the installer... is there something I can do with those extracted file ? I tried but its a mess of multiple cab files...


Also, I just cleared my event viewer log to do a fresh monitoring of that CheckSUR install.
here's what I got: ---> screencast.com/t/o5QemdgspC