Today I had a switag file appear on my computer that shows up on every computer that I have bought in the past five years and I would like to know what it is, and why it gets added to every computer I own. The file is "regid.1991-06.com.microsoft_Windows-10-Home-Single-Language.swidtag", and I've read that it is associated with MS Office, but I have never used MS Office. It just seems creepy the way it suddenly appears on my computers like a stalker you cant get rid of, and I am beginning to wonder if it is being used to track me in some way. Any thoughts on this would be appreciated,,,