It is easy to solve the fault

that System Group Policy cannot be started; we know that the basic principle of "Group Policy" is to modify the corresponding configuration items in the registry to achieve the purpose of configuring the computer, and it is safer, more convenient and more flexible than manually modifying the registry. So it is a system tool that every computer user likes and uses very often. But sometimes we will encounter a failure that "Group Policy" cannot be started. If it is not caused by insufficient user rights, it may be disabled. Then we can save the "Group Policy" by the following method.
Press F8 when starting the computer, select "Safe Mode with Command Prompt" in the "Windows Advanced Options Menu" operation interface, enter the system, then click "Start → Run", enter "cmd", in Enter "mmc.exe" in the "Command Prompt" dialog box and press Enter to open the "Console", click the "File → Add /Delete Snap-in → Add" button, select the "Group Policy Object Editor → Add" button And click the "Finish" button.
Next, select "Local Computer" policy in the "Console" dialog box and click the "Add" button, then go to disable the "Run only licensed Windows applications" policy.
Another situation is that even the security mode can not enter, then we can enter the "failure recovery console", use the CD command to enter the "C: WINDOWSsystem32GroupPolicy" directory, run "del /f /q gpt. Ini" command, delete the group policy settings file gpt.ini, and then restart the computer to recover.