Hi and welcome
The first file is related to the Windows Fax program. I have that also.
The other 2 are the ones I would want to delete.
Are you able to bootup in safe mode and try deleteing them or if you have Malwarebytes you can use their special prograam called FileAssasin under other tools. Select the files that you can't delete and it will reboot and try to delete I think in DOS mode.
I would also check in task mamager what you have running in the background.
That is usually what stops a file from being deleted.
Hope this helps. Any other questions ask.
Anyone else want to give their ideas?