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Windows 10 Professional mouse stutter/lag Fix

One of the most annoying things about Windows 10 is random mouse lag/stutter. To clarify if you move your mouse in a constant circle and it pauses every few seconds this is the fix.

Disable Cortana!

Cortana is constantly recording and sending data to Microsoft, which causes system performance issues. This is most apparent on slower internet connections but can also be seen on all systems based on how much data Cortana is collecting and sending back to Microsoft.

Warning! Incorrectly editing your system registry can cause your system to stop functioning. Follow instructions accurately.

To disabled Cortana do the following:

  • "Windows" Key + "R" Key to open the run command
  • type in "regedit"
  • Navigate to "Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows"
  • Right click the "Windows" key folder and choose New > Key
  • Name this new key "Windows Search"
  • Now Right click the "Windows Search" key folder and choose New > DWORD (32-bit) Value
  • Name this "AllowCortana"
  • Close the registry editor and restart your computer.

That's it, your done. Mouse lag/stuttering should be fixed.

The volume (DRIVE:) was not optimized because an error was encountered: Neither Slab Consolidation nor Slab Analysis will run if slabs are less than 8 MB. (0x8900002D)

This error appears in the event viewer when the scheduled task "ScheduledDefrag" runs.

Cause: In most cases this is cause by the -k switch which tells the defrager to perform a slab consolidation on the selected volume. This will cause an error for slabs that are less than 8 MB, and will commonly toss an error on HyperV VM's.

Solution: remove the -k switch from the task.

  • Open scheduled tasks, Microsoft, windows, defrag: "ScheduledDefrag"
  • Now click properties, actions, edit [start a program]
  • under add arguments(optional): remove the -k and click "ok", "ok"

That's it, your done.