when i click on a desktop folder a small box with a tick appears.
Hello Kavin,
Thank you for contacting AVG Community support.
We will help you to check and clarify the issue with opening the desktop folder.
Can you please let us know after installing which AVG program you are experiencing the issue.
To make sure if the AVG program causing the issue, please disable AVG Internet Security using the below article and check if you are able to open the desktop folder:
Disable AVG Internet Security. (https://support.avg.com/SupportArticleView?l=en&urlName=Disable-AVG-Antivirus&q=disable+AVG&supportType=home)
Thank you.