Unable to pin applications to the taskbar anymore

I upgraded my sony VAIO to windows 7 about a month ago, and I was allways able to pin apps to the taskbar but 

recently, I couldn't anymore. When I right-click an open application, the box only says "Close window", instead of "pin to taskbar".  When I try to drag an application to the taskbar, a red round sign appears. I haven't found any solutions yet.

 

Question Info


Last updated November 16, 2018 Views 45,492 Applies to:
Answer
HI 

The error happens because of missing registry value data for lnkfile registry key, which defines the behavior of all shortcut or .lnk files on the system. The registry value data in question, IsShortcut, can be accidentally deleted when user tries to hide and remove the arrow overlay icon on shortcuts. 
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To resolve the missing or lost “Open file location” entry, the IsShortcut registry value and the file associations for shortcuts has to be fixed.
  • Run Registry Editor (regedit.exe).
  • Navigate to the following registry key:
  • HKEY_CLASSES_ROOT\lnkfile
  • Right click on the right pane, and select New -> String Value (REG_SZ) to create a new registry value.
  • Name the new registry value as IsShortcut . No value data required.
  • Restart the computer.
If you already delete and other registry keys to remove shortcut arrows you must to do the same for all of them...
check the issue.

if persists
Try system restore from control panel option and try pinning to task bar.
if you have trouble with modifying Registry, search a third party tool with your search provider which can restore your shortcut arrow of your desktop icons. 

i hope the problem will resolve soon.

regards
Nikhil

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