★★★★ Delete the backup files left by the update (you can also use security guards or optimization software to slim down and delete the system).
★★★★ If not:
Run regedit to open, find HKEY _ local _ machine \ software \ Microsoft \ Windows NT \ Current Version \ Image file execution options directory, and right-click the permission command: Look, if only reading is checked, check full control permission, then click Add, enter your current system user name, click OK, and then check full control permission. Give it a try.
★★★★★ There are four Office-specific uninstallation tools in the office xiezai.zip package, namely MicrosoftFixit2003, 2007, 20 10 and 20 13. Run MicrosoftFixit to clean up the original office before installation.