For years, I have always signed in as "user" (admin) on my home PC. All my files belong to "user". All my backup processes belong to "user". Now after the upgrade, I no longer have the ability to sign in as "user" — this account is missing from all menus in the Control Panel and login screens! I have lost access to everything! How do I get my "user" account back so that I can continue as I did before the update?
Sounds like the user profile might be corrupt.
See instructions how to recover from a corrupt user profile:
References Windows 7, but the same instructions should work for Windows 10.
You can also try restarting a few times to see if the account reappears.
Thanks for your reply! Yes, I have restarted numerous time and the "user" account does not appear. I went to the link you specified. Can you be more specific about where I can find this information -- there are at least 16 topics listed and I can find nothing about a "corrupted user file".
Andre -- Thanks for your help but this is not my problem. The solution you provided suggests I create a new user and copy files over. This will not work for me since I my problem is that I could not log in as the admin (using the user account).
HOWEVER -- I think I have figured out the problem. Apparently during the W10 update last night (MS W10 Home, 10.0.14393 Build 14393), unknown (and unannounced) to me, my "user" account (the admin account) was replaced by my MS account (you know, the account I used to log in to this website). I had not used this account in years since the purchase of my PC. I had to go through the process of changing my MS account password (based solely on the email address I had registered the account with). I was able to change this password without a problem (anyone with knowledge of my email account could have done it). I then logged into this new account on my PC (the MS user account that was not there before until this recent update). It looks like I have all my files back and will see if my backup work later tonight. I am still getting warning that .NET software upgrade failed (I am not sure why that matters since I am not in a workplace environment -- I am on my home PC on a private wireless network).
I am still not sure if my MS account is the new admin account. I would love it if someone could enlighten me on why this was done AND assure me that my PC is safe because now that MS holds all the answers to the login of my PC, I do not feel safe!
Ah, that's definitely it. a
Logging On to Windows 10
The old username and/or password logon routine has been a familiar song and dance for Windows users for more than 20 years, dating back to Windows XP, Vista, and Windows 2000. Windows 10 still supports this username/password option but now it’s called a Local Account, because there is also a new way to log on. In Windows 10, the terminology used is signing in. This is because Windows 10 can utilize an email address tied to a Microsoft Account to authenticate on Windows. Examples of a Microsoft Account include addresses that use the Hotmail.com, Live.com, Outlook.com or MSN.com domains. Users in corporate environments can also use their work address to sign into Windows 10. Using a Microsoft Account to sign in is not required but strongly encouraged by Microsoft.