Customize Windows 11 to be more like Windows 10

To change context menus, in elevated command prompt, run:

REG.EXE add "HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32" /f /ve

Disable Web Search in Windows 11 or 10:

reg add "HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Explorer" /v DisableSearchBoxSuggestions /t REG_DWORD /d 1 /f

Change Taskbar size:

reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v TaskbarSi /t REG_DWORD /d 1 /f

0 = Small  1 = Normal  2 = Large     + Restart

To move the start button to the left:

Right click the taskbar

Select taskbar settings

Open taskbar behavior

Set Taskbar alignment to Left

To disable Data Execution Prevention (DEP):

From elevated command prompt, run: bcdedit.exe /set {current} nx AlwaysOff

(To re-enable bcdedit.exe /set {current} nx AlwaysON)