Avast block direct access to HDD for planned chkdsk after reboot?

When i plan chkdsk for my C drive after reboot, i got error that some software block direct access to drive and chkdsk will not run. That is strange because i got this message on both my computers, both has Avast (Free 19.3).

I am not 100% sure that causes Avast, it can be caused by windows updates, i didnt installed anything else.

Win 7 64bit

https://forum.avast.com/index.php?topic=225956.0

Thank you for fast answer, nice to know what causes this.

You’re welcome.