System scan progress percentage indicator gets stuck at 8%

While performing a system scan with Bitdefender antivirus free edition, I noticed that the scan progress percentage indicator got stuck at 8% while the scanning was in progress (the directory paths right under the indicator kept changing). I attached a screenshot to serve as a reference. I'd like to know

if I am able to have my computer 100% scanned with the free edition or just 8% of my system files.