A lot of my folders on my C drive have strange icons on their thumbnails - either a tick, question mark or exclamation mark, and I am not sure what they are.
I found online this may be something related to McAfee, potentially the backup status of files. However, although my PC has McAfee, it is a simple virus scanner and I do not have any backup software. The red exclamation mark actually appears on my C drive itself.
Any help on what these are and how I can remove them? I did attempt to delete the Icon Cache, and restart the PC but this hasn't fixed it.