Win7 system prompts windows may not have the appropriate permissions to access files what to do

Fault diagram:

Method One,

1, press "Win+r" on the keyboard to open the "Run" window, enter the cmd command to open the command prompt;

2. In the Open Command Prompt window, enter the Assoc. Exe=exefile command to reestablish the association (note: there is a space between the Assoc and the. exe);

PS: If you cannot run the cmd command into the command prompt, press and hold the F8 key while restarting the computer, and then choose Safe Mode with Command prompt to proceed directly.

Method Two,

1, first enter the system disk Windows folder, the registry root directory, and then right-click Regedit.exe, select Rename (hint: It is better to rename the command prompt, with the ren command);

2, change the file suffix name "exe" to "com", then double-click to open the registry, and then expand locate "Hkey_classes_rootexefileshellopencommand" registry key;

3. Then double-click the default key value, enter "%1%*", then "OK".