"Due to the following errors, the Group Policy Management Unit cannot save your changes and deny access ."

For various reasons, the Group Policy of the Windows operating system cannot be edited. There are many solutions for searching online, which can be summarized as follows:

First, check whether you have administrator permissions;

Second, the Group Policy Editor is disabled, that is, in the Group Policy, "user configuration-management template-Windows Components-Microsoft Management Console-restricted/Licensed Management Units-group policy-Group Policy object editing set ", if this problem occurs, the corresponding key value is displayed in the Registry. In this case, delete MMC under the Registry HKEY_CURRENT_USER \ SOFTWARE \ Policies \ Microsoft, (normally, this subkey does not exist, and only the Group Policy is disabled). Then, restart to enter security mode, type MMC in the command line, and open the console window, click "file-Add/delete Management Unit", click "add" on the "independence" tab, select "Group Policy object Editor", and click "add, the added Group Policy Management Unit appears in the console window and restarts the recoverable Group Policy console. (This method is summarized in online materials and is not tested by myself)

Third, because the Group Policy configuration file in the installed Windows has problems (such as cloning or optimizing the system ), in this case, you only need to replace the grouppolicy folder (hidden) in the System32 folder in the system directory. Generally, you can replace it with the original version corresponding to the system version. (This is the problem I encountered. Use this method to solve it perfectly) provide this folder for the Chinese version of xpsp3