Win7 can not lock the program to the taskbar solution

Recently Xiaobian encountered a problem when using win7, that is, the application and shortcuts can not be locked to the taskbar, I did not know what happened, but many existing None of the methods can solve this problem. Now I will share my solution for everyone's reference.
Problem Analysis
After thinking, the initial reason for this problem is caused by the use of third-party optimization software to eliminate the small arrow of the shortcut.
Workaround
In the Start Search box, type “regedit”, press Enter to open the Registry Editor

and then navigate to the following branch
HKEY_CLASSES_ROOTlnkfile

Right click on the lnkfile item <;New & rdquo;——“String value”

Right-click the new value #1, open the shortcut menu and click “rename” Type “IsShortcut”, enter

Then, on the HKEY_CLASSES_ROOTpiffile registry key, follow steps 3 and 4 to create a new “IsShortcut" key value