1. Open an elevated command prompt
  2. Type "Regedit" (without the quotes)
  3. Navigate to HKEY_CLASSES_ROOT\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\shell\Manage\command
  4. Edit Default and delete %SystemRoot%\system32\CompMgmtLauncher.exe
  5. Add "%SystemRoot%\system32\mmc.exe %SystemRoot%\system32\compmgmt.msc" (without the quotes) to Default
  6. Test by right clicking on "This PC" (or open File Explorer - Right Click on "This PC") and click on "Manage"
  7. Computer Management should come up