"This file can't be previewed because of an error in Microsoft Excel previewer" (full title, for Google!)
edit: applies to Office 365 excel preview not working in Windows Explorer.

Had tried all...

For me, post #2 was the answer, all you had to do to reenable RE was boot back to BIOS, get rid of CSM and then enable worked. There were a couple of trip points, but easily overcome.

First, I...

Just for completeness, this is now solved. Not by the usual reinstallation of Windows but actually cracking the problem. Turns out something about the controller on that mech drive was causing...

Put the 'defective' 970 Pro in (disconnected 850 Evo) and did a clean install from DVD of 1809. In reboot stage that gave a CRITICAL PROCESS DIED error, rebooted a few times and same. So disconnected...

I got SFC sorted, as noted. Had a look around about the reported errors and nobody reports the exact same issue, so looked a bit wider and am currently letting this run "dism /Online /Cleanup-Image...

Setup Diag now has a result:


Matching Profile found: FindDownlevelFailure - 716334B7-F46A-4BAA-94F2-3E31BC9EFA55
System Information:
Machine Name = OFFICE
Manufacturer = System manufacturer...

Did the log routine in post #11, not sure if doing it again gets a benefit, given the issues are all prior? Have had Who Crashed on for yonks. Before I started any of this it had no logs, and it...

bios definitely latest release, which is pretty old, really. Sata 5 & 6 are sacrificed to use 4X on the M.2 slot that sticks out (ie better cooling) and that is fine, disabled them. Tried both...

I have discovered there is 'something else going on here'. That DOA 970 Pro .... works perfectly when shoved in a 3.1 usb C to MVMe case into my Dell 51M laptop (waited 12 years for that one!). So I...

Took about 8 hrs to get the 4Tb mech done. As you can see I thought I queued the op sys drive after that on restart but no Event log so will run later today after get some other stuff sorted, plus...

Filled in rest of PC spec. Got part way through 4Tb chkdsk but 1% done and needed box back so will run tonight. Here is the output so far:

232737


Microsoft Windows [Version 10.0.17763.437]...

Anything BSODS in the logs prior to 12th April were about the 970Pro failures - I probably saw 70 in my stubbornness to try and get through to do a repair install between the first two failures....

232580

Pretty good collection that! Interesting that ASUS KeyBot is having a critical error and that is the usb port the keyboard is plugged into. Not sure if I have ever used / need the...

I have an MC DVD of 1809, had contemplated an in-place upgrade but figured clean DISM and SFC meant little point, plus need to clear 'an issue' before try. Of the Code list, mostly done, but I...

Obviously the diagnostic startup was a flop - too many things dysfunctional and little point to pick them out and activate as bits fell over.

I can't find a media creation tool file for 1903 but...

The troubleshooter found nothing, ran as admin. I have no 3rd party AV, just Defender. Oh, and Malwarebytes (free) running as a service. I have used the Location option to move Documents etc to a 4Tb...

"SetupDiag found 0 matching issue.". But what a useful looking program, except for that result... Paddled around in the logs for a while but unsurprisingly can't say I saw anything I recognised as...

Being in the slow ring, 1903 turned up on checking via Windows Update. I fresh installed 1809 a few months ago, don't particularly want to do that again with all the settings and software to sort....

An 'interesting footnote' is that 1903 x64 didn't actually install and is stuck in a loop of download, install, restart, download... etc, 4th time now. No errors reported but I am still on 1809. Yet...

"With the upgrade to 1203" oops, that would be 1903, but you knew that.... (was on 1809)

With the upgrade to 1203 the right click menu options are back, they work, and now the Picture tab menu options work too, whereas they just appeared before but clicking didn't do the deed...
...

The Picture tools tab has the buttons, but they don't work - at least on .jpg or .png. Click, the menu goes, but the image doesn't rotate like it used to. Hmm, Slide show gets 'a fail' too.

I...

The Picture tools tab has the buttons, but they don't work - at least on .jpg or .png. Click, the menu goes, but the image doesn't rotate like it used to. Hmm, Slide show gets

I bought Paintshop...

Unbelievably, these great little registry hacks didn't get it back for me. Even running Remove then Add and there they aren't. I have made friends with http://www.nirsoft.net/utils/shexview.html and...