The fix for the Windows 10 1903 slow down and lag for me was to disable the Meltdown and Spectre patches I used InSpectre.exe and disabled the Spectre patch…There is also a way to do it manually that may disable the Spectra 4 patches that Windows 10 1903 install. I did not use that and used the Gibson Research program and it made a huge difference. The lag before this was so bad that it almost made the computer unusable. I have an AMD FX 9370 eight-core with 16 gigs of ram
Here is the manual fix:
To disable mitigations, Put two lines below in a batch file and run it as admin (<– important!):
reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management” /v FeatureSettingsOverride /t REG_DWORD /d 3 /f
reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management” /v FeatureSettingsOverrideMask /t REG_DWORD /d 3 /f
Also, use these two lines in a batch file (and run as admin) to re-enable all mitigations:
reg delete “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management” /v FeatureSettingsOverride
reg delete “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management” /v FeatureSettingsOverrideMask
Seems to work. Please note: this is the same procedure as used on Windows versions prior to 1903.
