To help you open the windows reinstalled folder, which was originally installed on a computer with a Windows family common edition system, and downloaded the latest computer system in the folder to hide it, as a result, after the win7 flagship version is reinstalled, the folder cannot be opened and no access permission is available. There are two ways to solve this problem. See the following content! Solution: open notepad and copy the following content to Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT/*/shell/runas] @ = "Administrator ownership" "NoWorkingDirectory" = "" [HKEY_CLASSES_ROOT/*/shell/ runas/command] @ = "cmd.exe/c takeown/f/" % 1/"& icacls/" % 1/"/grant administrators: F "" IsolatedCommand "=" cmd.exe/c takeown/f/"% 1/" & icacls/"% 1/"/grant administrators: F "[HKEY_CLASSES_ROOT/exefile/shell/runas2] @ =" Administrator ownership "" NoWorkingDirectory "= ""