What should I do if the Win7 system is modified with invalid suffixes? Win7 system modified suffix name is invalid solution

Win7 system modified suffix name is invalid? Under Windows 7, there are so many files, and we can not only distinguish these files by naming, but also by suffixing them, we can modify these suffixes to get what we want. The files, but sometimes our modifications to these suffixes are always invalid. What is going on? The following small series will give you a solution to the invalid modification of the Win7 system. Let's take a look!

Reason analysis:

The user incorrectly used the method of adding "add" extension, but in fact there is no change, because the user does not open the common extension display as shown below, the user Change the text document to Bat or a text document.

The correct method is:

1, first open the folder options, as shown below;

2, open "folder options" In the window, switch to the "View" panel, find the "Unlock the extension of the known file type" in the "Advanced Settings" box, remove the previous tick, <; OK & rdquo;;

3, after the confirmation, the hidden suffix name is displayed, then you can change the suffix to succeed!

In fact, the modified extension name is invalid. This problem is only because the user does not open the common extension, as long as the method provided by the above small series can solve the problem that the modified suffix name in Windows7 system has no effect.