Win7 system prompts windows may not have the right permissions to access the file how to do

Fault diagram:

Method 1、
1. On the keyboard, press “WIN+R” to open the “Run” window, enter the cmd command to open the command prompt;
2, open In the command prompt window, enter the assoc .exe=exefile command to re-establish the association (Note: there is a space between assoc and .exe);
PS: If you can't run the cmd command to enter the command prompt, then restart the computer. Press and hold the F8 key, then select the safe mode with the command prompt to directly operate.
Method 2,
1, first enter the windows folder of the system disk, the root directory of the registry, then right click on regedit.exe, select the rename (Hint: it is best to rename the name at the command prompt, Use the ren command);
2, change the file suffix name & ldquo; exe & rdquo; to “ com & rdquo;, then double-click to open the registry, expand the location to find the registration item of "HKEY_CLASSES_ROOTexefileshellopencommand";
3, then double-click The default key value, enter “%1%*”, then click “OK”