Windows 10: CPU Usage Constantly Hitting 100%

Hi everyone!

I have a Lenovo Thinkpad T450s with iCore 7, 12GB Ram, 512GB SSD, and Windows 10 Pro. The laptop was working flawlessly until a few days ago...

All of the sudden the machine has slowed significantly, and I whenever I open a browser (no matter whether it's MS Edge or Chrome), the CPU process hit 100%. This happens all of the time now, rendering my laptop literally unusable.

I've uninstalled and reinstalled Chrome, changed a million settings in Windows 10, scanned for viruses and malware (found none), and more. I am at a loss...

Would you have any advice for me? I would really appreciate it!

Best wishes,
Valerie

:)

 

CPU Usage Constantly at 100%

So I tried downloading the hotfix here Z97-A/USB 3.1 | Motherboards | Asus but it didn't do any good.

I did selective startup via Diagnostic Startup in System Configuration, and there were no problems in CPU usage when I did that. Resumed to normal startup, same issues.

Startup programs: Just Dropbox, OneDrive, and AutoHotKey.





Typical resource hogs:





Honestly this makes no sense.... appreciate the help thus far, hopefully this info helps.

Edit: whoa, quick update. I used a CPU stress tester almost immediately after I posted this, and after it happened, it seems to have fixed the problem... weird, we'll see how long this lasts....

 

cpu usage at 100%

CPU usage at 100% from start up for no apparently good reason. Service Host appears to be the problem but I cant narrow it down more than that at present.

Any suggestions?

I am using Windows 10 full release version 64 bit.

 

Windows 10 extreme CPU usage

Thanks, but yes I was definitely seeing this issue while that trace was recorded.

Task manager was constantly showing 100% CPU usage and Resource monitor shows silly numbers for the CPU usage (40441489%).

If I sum the numbers under CPU in the Processes tab in Resource monitor, it matches the values shown in the trace (i.e., CPU usage is not 100%, but the charts and summary total at the top of the processes tab are maxed out.

In task manager the CPU usage numbers seem to be normalised to 100%.

i.e. they are constantly changing but seem to always add up to 100%.

I think that the CPU usage reported in the trace is correct, but Task Manager and Resource monitor are doing something wrong?