since two weeks my windows 10 pc got really slow, and I have no idea why. I can still do everything, but everything takes much longer to a degree that I'm struggling to get my school work done. listening to music is usually not fluent but "stammering", mouse movement is sometimes also interrupted and opening webpages can take ages.
I already tried the following, but none of them solved the problem:
- free up space on hard disk (C:). now there's 16 GB free, but problem remains (lenovo recovery disk (Q:) is almost full, only 500 MB out of 13 GB are free, but someone told me that this doesn't matter?)
- check task manager for CPU, memory, network and disk usage, but it's constantly around 50% max (well within the limits) and the computer is still slow
- try different programs and internet connections, but my pc remains slow, even with the super fast internet at my university
Best Answer
I had the same problem but the solution was different. My CPU, Memory usage and everything looked normal but it seems my system had high page faults which was slowing down the entire system. To check if this is a problem in your system
Start->Run->perfmon
Select "Performance monitor" and click on "Add a counter" (+ button)
In the list of counters shown, locate and expand Menory and select the "Page faults" counter
Watch the performance monitor to see if the page faults are high. In my case it was at 100 always
If you have confirmed that you have high page faults, now we need to find out which application is causing it. Follow the below listed steps.
Search google for "ProcessExplorer" from SysInternals.
Download ProcessExplorer and run as administrator
Under the "View" menu click on "Select Columnns"
Click on the "Process Memory" tab.
Enable "Page Faults" and click OK.
Now you will see the "Page Faults" column. Sort it in descending order. You will find out which one is causing high page faults. If it is a user installed application try uninstalling and re-installing it.
In my case, it was "KasperSky". My license got expired and I renewed it from the KasperSky app. Guess something got messed up with that. I uninstalled and re-installed KasperSky and my system was back to normal!