Hi Enrico. Are you using Windows Defender as your Antivirus by chance? The only reason I ask is because this exact same thing was happening to me, but ultimately it was Defender that was ramping up every time the system went idle. As soon as you move something, it stops (since the system isn't idle anymore). I had been very happy with Defender on my SP1 so didn't want to disable it, but as soon as I did, the weird idle processes stopped. I have since loaded another virus protection and completely disabled Defender and have never had this problem again. (PS--I thought originally it was Defender needing to run a daily or monthly task but mine kept doing this for over 2 days. Weird, I know.)I have again the SYSTEM high cpu usage that comes each time the computer is idle for 2/3 minutes.
As I can I will proceed with a reset of my sp3 i7..... but if possible let's find a solution, it's crazy.
I use process explorer now
I saw today first that a SRTASK.exe triggered the SYSTEM to go up to 35%.
Then I see another process MRT.EXE to do the same, this was malicious removal tool of Microsoft, and I eliminated it.
Now I have the ngentask.exe process to send up the SYSTEM again, it is related to .net framework.
I'm not able to fix this last for example.
As reported another user, is happened to us that the Logitech keyboard K810 bluetooh is working a bit crazy since few days and some recent update of Microsoft..which I don't know, even the Logitech utility not able to recognize they keyboard anymore, mouse it's ok. But I tried to disconnect mouse and keyboard, ok without reboot, and the issue there is always.
Don't know what to do, I will work all the day on this then RESET.
I think Microsoft should give us an employee to fix all those bugs, we spent in this forum hundred thousands of dollars in this device, soon millions, we need an immediate help to fix bugs because we can't dream the solutions and fixes.
Just make sure that Windows Defender is completely off, too. If they are BOTH running that could be even worse. I wish I could tell you exactly where to go, but am on my phone so will have to check from home. It's worth a look because this sounds really similar to what I was experiencing. I almost sent mine back and now I really do love it.Hi, I use only Avast ... I tried also to disable avast, and reboot, no reboot, etc etc, nothing.
Sometime I have some hour where if I leave pc even 10 minutes nothing happen, then moments like now that I just need to wait exactly 3/4 minutes and appear ALWAYS the issue.
Today I downloaded YAC, Malwarebytes etc etc and checked and scanned pc if they find a virus... nothing, I cleaned registry with cc cleaner, netgate etc I did all the possible, I become mad.
Windows defender was disabled on my pc I don't know even where to see but I don't see and never seen it active. Usually I use just avast and I was always fine with it with virus and web surfing protection.
Because AVAST is on does not mean that Defender is off.Is off I looked for it and it says that is off because avast is on. I have only avast sure