Windows – Explorer causes 100% disk usage and computer to run very slow

hard drivewindows 10

On windows 10 anniversary, Explorer seems to be causing the disk usage to go up to 100% and response times of higher than two seconds. I have confirmed it was explorer by killing the process, watching the disk usage drop down and restarting it and watching it go back to 100%. Is there any possible solutions to this, as using windows without explorer makes things complicated

Best Answer

Ok, I checked the trace with Windows Performance Analyzer and here I see that most disk IO is caused by reading the file C:\Users\blake\AppData\Local\Microsoft\Windows\Notifications\wpndatabase.db-wal.

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This is a Write-Ahead Log File which is created from SQLite database which Windows seams to use to store Notifications. Also your TOSHIBA MQ01ABD100 is a very slow HDD with its 5400rpm.

Disable as much notifications from apps as possible and look if this removes the disk IO.

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