Being logged in to Windows 7 with a temporary profile

I switched on my PC and when I entered my password to log in I was told that I was being logged in with a temporary profile because my real one was unavailable. Logging out and back in again sometimes solves the problem for now. Here’s is how to fix it correctly.
This problem occurs if the current user’s profile was accidentally deleted from the system or malware/virus has corrupted the profile.
Note: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
1. Log on to the system by using an administrative user account other than the user account that is experiencing the problem.
2. Back up all data in the current user’s profile folder if the profile folder still exists, and then delete the profile folder. By default, the profile resides in the following location:
%SystemDrive%\Users\UserName
3. Click Start, type regedit in the Start Search box, and then press ENTER.
If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
4.Locate the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
5.Under the ProfileList subkey, delete the subkey that is named SID.bak.
Note SID is a placeholder for the security identifier (SID) of the user account that is experiencing the problem. The SID.bak subkey should contain a ProfileImagePath registry entry that points to the original profile folder of the user account that is experiencing the problem.
6. Exit Registry Editor.
7. Log off the system.
8. Log on to the system again.