Big Win 10 update yesterday, ("update", not "upgrade", I was already running Win 10), but now the terrible CompatTelRunner is starting with Windows, and it is using far too much CPU, from 0% up to 80%, and ever so slowing the use of Windows. After it has done its job, it will close until next Windows launch.
"ThomasJohnson-977" phrased my problem quite well:
>>Wondering what CompatTelRunner.exe is doing on my computer?<<
ThomasJohnson-977: >>I have upgraded to Windows 10 Home from Windows, and my disk is maxed out for 20 minutes on startup every time I start it. So I decided to dig in and found dozens of svchost.exe running, which slowly disappear and dozens of CompatTelRunner.exe start to run. All of them are open to random files throughout my pc. I almost can't even use my pc while this happening because to start something requires disk I/O and there is no bandwidth. Memory isn't full and CPU is 4% or less but I still can't do much during those 20 minutes. Resource Monitor shows the tasks are running in the background, but they are preventing me from doing anything in the "foreground". ANNOYING! When it's done' everything is working just fine.
When I did the upgrade, I said to NOT share anything with MS, except errors. So I don't know what it is doing. I thought at first maybe it's some sort of AV, but the name of this exe just doesn't jive with that. If this is about Windows 7 Compatibility, why is it still running after upgrading, and why on every boot up?<<
ZigZag3143 (Windows & Devices for IT Pro MS -MVP) replied on MVP Insider Community Moderator Wiki Author Completed Training MCC: Content Creator MCC: Content Curator Conversationalist Launch expert - Windows 10 Most Recommended Discussion
>>That is the compatibility update for win 7 RTM.<<
"compatibility update for win 7 RTM"? Hmm... maybe, maybe not.
I don't use "Metro" and I don't have any "apps" running, (only real programs...), so I have no use for this new old thing.
Any one else having problems with CompatTelRunner the first few minutes after Windows has started?
Tips on how to get rid of it?