My user has disappeared on the start page

[Mazi152]

my user, the thing you log onto, has suddenly disappeared and but one user is still there. this user is an administrator. Under the admin's user i went onto the control panel and found all of the users that had disappeared right there. The only problem is I can't get them back on the start screen. This happened after a program was installed. Has anyone had this problem and can they help me?

 

[Ztruker]

Do a System Restore to before you installed the program, see if that fixes the problem.

Click on Start, type system restore and press Enter to get there.

 

[windude99]

my user, the thing you log onto, has suddenly disappeared and but one user is still there. this user is an administrator. Under the admin's user i went onto the control panel and found all of the users that had disappeared right there. The only problem is I can't get them back on the start screen. This happened after a program was installed. Has anyone had this problem and can they help me?

First, what program did you install that made the user disappear? Second, this might be a malware situation, so please run a scan with Malwarebytes Antimalware: Malwarebytes Anti-Malware - CNET Download.com