MY HP Envy, after Windows 10 installation in September 2015, still has some of the intermittent stability problems that I had with Windows 8.1. The Geek Squad installed W10, and had to redo it as a fresh install (without affecting the data) because Windows File Explorer “Quick Access” would not populate thumbnails properly.
The HP disk diagnosis tool apparently is not available to Windows 10, as these screenshots show.
But on a couple of occasions, HP has run a disk check (scandisk) before starting the machine normally. That would take around 5 minutes. It would repair a sector at around 8%, and then again between 48-50%.
Microsoft doesn’t seem to have a clean explanation. The forums are all over the map, for example.
It is possible that a hard disk error did cause the critical process to die. But HP’s own auto disk repair, which has run a couple of times, ought to have fixed it.
It’s not practical to rebuild machines and operating systems at home all the time. There is too much to do. It’s also irresponsible for Microsoft to expect customers to do “free” upgrades that are likely to be unstable, when consumers have everyday work to do.
I do use Carbonite for backups (and check it). I also make manual backups (on USB thumbs) of the most important files (several different copies), usually leave at least one in a safe deposit box, and also load the important files to another machine (not networked) with W8 that also has its own carbonite. And I do have a few Seagate backups lying around.
Below are some typical errors that I see on my own event log.
“The User Data Access_1b440ca service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 10000 milliseconds: Restart the service.
“The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID
to the user NT AUTHORITY\SYSTEM SID (S-1-5-18) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool.
“The User Data Access_47e87 service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 10000 milliseconds: Restart the service.”
Update: Jan 18, 2016
After a couple days of stabililty, I got an "unexpected store exception" right after a fast start, and a fake hard disk error. A push button start worked as usual. Here's a Blogger (Kunmi's Space) post on it.