Windows 10 Performance: Disk at 100%

Windows 10 was lagging like crazy this morning. I opened the Task Manager (using Ctrl-Alt-Del) and discovered that the disk was running 100% of the time. I tried a bunch of things described in How to Fix: 100% Disk Usage on Windows 10 Task Manager. Here are some of the ones that may have helped.

Update: On June 15, 2018, after a recent Windows update, I noticed on that all Windows  services had been reenabled. Bloody Windows!

Disable Google Chrome’s Prediction Service

To do this:

1. In Google Chrome, go to “Settings“.
2. Scroll down to the bottom of the page and click “Advanced“.
3. In the “Privacy and security” category, make sure the “Use a prediction service to load pages more quickly” is turned off.

Disable Windows Search Service

To deactivate it:

1. From the Start menu, search for “services” to open the Services window
2. Find Windows Search
3. Right click on it and select Properties
4. Change the Startup type option to Disabled. Then click Apply and OK to save your change.
5. Right click on Windows Search and select Stop

Disable SuperFetch Service

To disable SuperFetch:

1. From the Start menu, search for “services” to open the Services window
2. Find SuperFetch
3. Right click on it and select Stop
4. Right click on it and select Properties
5. Set Startup type to Disabled

Disable Connected User Experiences and Telemetry Service

To disable Connect User Experiences and Telemetry (AKA DiagTrack):

1. From the Start menu, search for “services” to open the Services window
2. Find Connect User Experiences and Telemetry and right click on it
3. Select Stop
4. Select Properties
5. Set Startup type to Disabled

Disable Microsoft Compatibility Telemetry (CPU hog)

To disable Microsoft Compatibility Telemetry, which causes CPU spikes:

1. Type Win-R
2. In the Run window, enter taskschd.msc to open the Task Scheduler
3. In the navigation pane (on the left), select Task Schedule Library/Microsoft/Windows/Application Experience
4. In the top right pane, click on Microsoft Compatibility Appraiser and ProgramDataUpdater and disable them both

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