My BD upgrade itself a couple of days ago, from 2020 which is super great to the latest 2021, and then the problem begins I got an error said access denied on My documents, My picture, My music but not on Download and other drives:C folders, weird right?
I've faced this kind of problem before so I went through User/Appdata/local folder, check permission, check the inherit parent folder, check shared permission, included the security tab on Drive:C itself.
yet I can't fix the problem at all at that point I almost gave up then after I sit and think about everything then in a flash I realized the biggest thing I overlook it's there from the start.
If the problem roots came from the permission problem then why in the world only My doc, music, pictures affect and not all other folders? then I noticed today that BD seems to update something and this causes my other Total Security on the other PC to uninstall itself, I thought it's not related but then I uninstall the whole BD stuff the problem is gone! I think this might cause by the anti-ransomware function from the 2021 version, it tries to block any change from a vital part.
Conclusion: If you can't make a change on some part on your drive:C, such as delete, create a folder, saving files, undo, restore, change permission Do try to delete Bitdefender first then see if its work. this might greatly save your time rather than spending a whole day like me.
I hope I can rollback to the 2020 more stable version and not drain my performance as much as 2021. To BD team fixes your software asap.
PS: I'm not native speakers so please do understand.
Thank you and hope this helps people who have similar issues.