Updated to latest version and then initial scan stuck at 50% while scanning for rootkits

Hello Zhixin,
We apologize for the inconvenience.
To assist you better, could you please let us know if you have AVG free or paid version installed and please wait for some time and see if the scan gets complete. If the issue still persists, we suggest you to cancel the scan and run the rootkit scan again.
Thank you.

I am concerned because it stuck the very moment it was scanning for Rootkits… a chill… Please advise what should I do.

Pre: My system kept crashing randomly but I cannot detect any anomaly so I decided to try out AVG.

Hello Zhixin,
We apologize for the inconvenience.
To assist you better, could you please let us know if you have AVG free or paid version installed and please wait for some time and see if the scan gets complete. If the issue still persists, we suggest you to cancel the scan and run the rootkit scan again.
Thank you.