[system management] clear the icon cache of deleted programs in the taskbar

The notification area is located on the taskbar （Taskbar） Right side , contain

• 【 Application tray （Tray）】 Icon , Provide reminders and settings about the application , See the following figure to mark the yellow area
• 【 System icon 】 Icon , Provide status and notification of system services
  
• 【 problem 】 Display the icon of the uninstalled application in the notification area icon setting in the system settings ？
• 【 resolvent 】 Delete the notification area icon cache in the registry and reset and automatically create the notification area icon .
• 【 Cause analysis 】 Improper software uninstallation , Especially delete the green version directly & Installation free （Portable） Software , It is easy to damage the icon cache of the notification area , The icon that causes the icon setting of the notification area still appears .
  

Solution steps

The notification area icon cache is located in the following registry key HKEY_CURRENT_USER\SOFTWARE\Classes\Local
Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify\ The following two variables in

• IconStreams
• PastIconsStream
  

1. Copy the following and save as Reset_NotiAreaIconsCache.bat To desktop .

@echo off

set regPath=HKCU\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify
set regKey1=IconStreams
set regKey2=PastIconsStream


echo.
echo  Before deleting the notification area tray cache icon , Be sure to close the resource manager process . 
echo.
echo  Before proceeding , Be sure to save important working documents .
echo.
pause


echo.
taskkill /IM explorer.exe /F
echo.
FOR /F "tokens=*" %%a in ('Reg Query "%regpath%" /v %regkey1% ^| find /i "%regkey1%"') do goto IconStreams
echo  Deleted registry key  "IconStreams".
echo.

:verify-PastIconsStream
FOR /F "tokens=*" %%a in ('Reg Query "%regpath%" /v %regkey2% ^| find /i "%regkey2%"') do goto PastIconsStream
echo  Deleted registry key  "PastIconsStream".
echo.
goto restart

:IconStreams
reg delete "%regpath%" /f /v "%regkey1%"
goto verify-PastIconsStream

:PastIconsStream
reg delete "%regpath%" /f /v "%regkey2%"


:restart
echo.
echo.
echo  You need to restart your computer to complete the reset task of your notification area icon .
echo.
CHOICE /C:YN /M " Do you want to restart your computer now ？"
IF ERRORLEVEL 2 goto no
IF ERRORLEVEL 1 goto yes


:no
echo.
echo.
echo  The resource manager is restarting .... 
echo.
echo  Please remember to restart the computer later to complete the reset task of your notification area icon .
echo.
start explorer.exe
pause
exit /B

:yes
shutdown /r /f /t 00

！ Be careful ： The above text code is GB 2312; Other codes will cause the problem of garbled prompt text .

！ Be careful ： Before proceeding to the next step , Please close and save the important content that the user is working on . The following steps will involve restarting the resource manager and restarting PC.

3. function .bat file .

4. If there is a hint , Please click on the / Click on “Enter” Continue with consent .
   
   

5. Follow the instructions in the command prompt to reset the notification area icon . If you don't restart your computer now , You need to reset the notification area icon later .
   

Related questions

• How to clean up the deleted programs in the system settings taskbar / Green Program / Legacy icons of non installer / picture ?

appendix ： Technical references