Both sfc/startup repair cannot fix corruption - credui.dll

I've uploaded a file - 828ad.zip - to my OneDrive at Noel's OneDrive
Please download and save it.
Right-click on the downloaded file, and select Extract all…
Extract to the default location - which will create a new folder 828ad in the same place.
Open this folder - there should be one folder inside it (Manifests)

Copy the content of the manifests folder (.manifest files) into this folder:

C:\Windows\Temp\CheckSur\Winsxs\Manifests
(overwrite if necessary)

Now run the CheckSUR tool again (it may take a while)

Post the new CheckSUR.log file, and the CheckSUR.persist.log file.

You have problems
There are now more errors appearing.
If I remove the ones that we already knew about, here's what we get...

Code:

Checking Component Store
(f) CSI Payload File Missing 0x00000000 DWrite.dll.mui amd64_microsoft-windows-directwrite.resources_31bf3856ad364e35_7.1.7601.16492_it-it_6d6b27713a307bae 
(f) CSI Payload File Missing 0x00000000 DWrite.dll.mui x86_microsoft-windows-directwrite.resources_31bf3856ad364e35_7.1.7601.16492_it-it_114c8bed81d30a78 
(f) CSI Payload File Missing 0x00000000 FntCache.dll.mui amd64_microsoft-windows-d..fontcache.resources_31bf3856ad364e35_7.1.7601.16492_it-it_acc694affd2f0026 
(f) CSI Manifest Missing 0x00000002 amd64_wiabr004.inf_31bf3856ad364e35_6.1.7600.16385_none_07dc391f98b960bb.manifest amd64_wiabr004.inf_31bf3856ad364e35_6.1.7600.16385_none_07dc391f98b960bb 
(fix) CSI Manifest Missing CSI File Replaced File: amd64_wiabr004.inf_31bf3856ad364e35_6.1.7600.16385_none_07dc391f98b960bb.manifest From: C:\Windows\CheckSur\v1.0\windows6.1-rtm-client-neutral-amd64.cab
(f) CSI Manifest Missing 0x00000002 winsxs\Manifests\x86_microsoft-windows-i..ersandsecurityzones_31bf3856ad364e35_9.4.8112.16476_none_cd31ac6ff1344730.manifest x86_microsoft-windows-i..ersandsecurityzones_31bf3856ad364e35_9.4.8112.16476_none_cd31ac6ff1344730 
(fix) CSI Manifest Missing CSI File Replaced File: x86_microsoft-windows-i..ersandsecurityzones_31bf3856ad364e35_9.4.8112.16476_none_cd31ac6ff1344730.manifest From: C:\Windows\CheckSur\v1.0\windows6.1-ie9gdr-servicing-x64-20aug13.cab
(f) CSI Payload File Missing 0x00000000 FntCache.dll.mui amd64_microsoft-windows-d..fontcache.resources_31bf3856ad364e35_7.1.7601.16492_fr-fr_c29e9e6925fd1aa8 
(f) CSI Payload File Missing 0x00000000 DWrite.dll.mui amd64_microsoft-windows-directwrite.resources_31bf3856ad364e35_7.1.7601.16492_fr-fr_8343312a62fe9630 
(f) CSI Payload File Missing 0x00000000 DWrite.dll.mui x86_microsoft-windows-directwrite.resources_31bf3856ad364e35_7.1.7601.16492_fr-fr_272495a6aaa124fa 
(f) CSI Manifest Missing 0x00000002 amd64_wiabr004.inf-languagepack_31bf3856ad364e35_6.1.7600.16385_en-us_b7f73fef29875704.manifest amd64_wiabr004.inf-languagepack_31bf3856ad364e35_6.1.7600.16385_en-us_b7f73fef29875704 
(fix) CSI Manifest Missing CSI File Replaced File: amd64_wiabr004.inf-languagepack_31bf3856ad364e35_6.1.7600.16385_en-us_b7f73fef29875704.manifest From: C:\Windows\CheckSur\v1.0\windows6.1-7601-x64-clientcab4.cab
(f) CSI Manifest Missing 0x00000002 amd64_wiabr004.inf.resources_31bf3856ad364e35_6.1.7600.16385_en-us_4fdc831e7ae5b86d.manifest amd64_wiabr004.inf.resources_31bf3856ad364e35_6.1.7600.16385_en-us_4fdc831e7ae5b86d 
(fix) CSI Manifest Missing CSI File Replaced File: amd64_wiabr004.inf.resources_31bf3856ad364e35_6.1.7600.16385_en-us_4fdc831e7ae5b86d.manifest From: C:\Windows\CheckSur\v1.0\windows6.1-7601-x64-clientcab4.cab
(f) CSI Manifest Missing 0x00000002 amd64_wiabr005.inf-languagepack_31bf3856ad364e35_6.1.7600.16385_en-us_b94b7905f521b95b.manifest amd64_wiabr005.inf-languagepack_31bf3856ad364e35_6.1.7600.16385_en-us_b94b7905f521b95b 
(fix) CSI Manifest Missing CSI File Replaced File: amd64_wiabr005.inf-languagepack_31bf3856ad364e35_6.1.7600.16385_en-us_b94b7905f521b95b.manifest From: C:\Windows\CheckSur\v1.0\windows6.1-7601-x64-clientcab4.cab
(f) CSI Payload File Missing 0x00000000 DWrite.dll.mui amd64_microsoft-windows-directwrite.resources_31bf3856ad364e35_7.1.7601.16492_ru-ru_29e175fbc10a89d0 
(fix) CSI Payload File Missing CSI File Replaced File: DWrite.dll.mui From: C:\Windows\winsxs\x86_microsoft-windows-directwrite.resources_31bf3856ad364e35_7.1.7601.16492_ru-ru_cdc2da7808ad189a\DWrite.dll.mui
(f) CSI Payload File Missing 0x00000000 mshtmler.dll amd64_microsoft-windows-ie-htmleditingsupport_31bf3856ad364e35_8.0.7600.16385_none_6a1cbf5f4ad99b65 
(f) CSI Payload File Missing 0x00000000 VGX.dll x86_microsoft-windows-ie-vgx_31bf3856ad364e35_9.4.8112.20593_none_05f6a2141c55df06

This tends to imply that you have either got malware problems, or disk problems...


Please run a full CHKDSK scan....
Click on Start > All Programs > Accessories
Right-click on the Command Prompt entry
Select Run as Administrator and accept the UAC prompt - the Elevated Command Prompt window should pop up.

At the Command prompt, type
CHKDSK C: /R
and hit the Enter key.

You will be told that the drive is locked,
and the CHKDSK will run at he next boot - hit the Y key, and then reboot.
The chkdsk will take a few hours depending on the size of the drive, so be patient!
After the CHKDSK has run, Windows should boot normally (possibly after a second auto-reboot) -

Look for the results in the Event Viewer's Windows Logs - Application events, under the Source 'Wininit' They should be there - copy and paste the results to your reply.

Your first priority must be to back up your data to external media - your drive may be on a slippery slope with a cliff it'll go over tomorrow!
Once that's done we can worry about the OS and other stuff.

<crosses fingers>

Your hard drive is DEFINITELY failing, back up your data to external media NOW - before it dies completely (If you haven't already).