I managed to do this once by foolishly changing the name of my personal account created when I first logged in so I am guessing it's a permissions thing on your profile settings. If you can get in as administrator you could delete your profile and recreate yourself. However this may not work and you'll have to copy over your docs etc. to your new profile and make sure you back up first.
Sorry I can't be more help hopefully others will be
Andrew
Hi Drea74,
For any windows 10 issue, I recommend you post in windows 10 forum , as they should have more professional knowledge on windows 10 and you may get effective solution timely.
Thanks for understanding!
Best regards,