1. To Log on to another Administrator account NOTE: If you do not have another Administrator account, then proceed to step 2
A) Go to the STEP TWO section below.OR 2. To Boot into Safe Mode for the built-in Administrator account NOTE: You may not need to enable the built-in Administrator account. If this was the only normal administrator account you had, then Safe Mode should automatically boot into the built-in Administrator account
OR 3. To Enable the Built-in Administrator account at Boot
A) Boot into Safe Mode
(in Vista) or Safe Mode
(in Windows 7).
B) If Safe Mode did not boot into the built-in Administrator
account, then enable the built-in Administrator
account. If it did , then go to step 2C.
C) Log off in Safe Mode, and then log on to the built-in Administrator account to logon with that account in Safe Mode.
D) Go to the STEP TWO
Backup anything that you do not want to lose in this user account's C:\Users\(user-name)
profile folder, if the profile folder still exists
, to another location, then delete the (user-name)
profile folder. 2.
Open the Start menu. 3.
In the Start Menu search box, type regedit
and press Enter
If prompted by UAC, then click on Continue
(Vista) or Yes
(Windows 7). 5.
In regedit, go to: (See screenshot below step 7)
In the left pane, click on one of the S-1-5.....
key) with the long number. (See screenshot below step 7) NOTE: It should have .bak at the end of it
A) In the right pane, look at the ProfileImagePath to see if this is the same user account that you deleted in step 1 above.7. To Backup the Registry SID Key WARNING: You should backup this SID key to be safe in case you delete the wrong one in step 8 below
B) Repeat step 6 until you find the one that you deleted in step 1 above.
A) Right click on the SID
key from step 6, and click on Export
B) Type in a name and save the REG
file to a safe location. NOTE: This is your backup. To Restore the Backup, right click on the REG backup file and click on Merge
C) Continue on to step 8.
Right click on the SID
key, from step 6 with bak
at the end, and click on Delete
. (see screenshot above) 9.
Click on Yes
to confirm deletion. (See screenshot below)10.
If there is another SID
key with the exact same long number from step 6 for this user account without bak
at the end, repeat step 7 first, then right click on this same SID key, and click on Delete
. (see screenshot below step 7) 11.
Click on Yes
to confirm deletion. (See screenshot below step 9) 12.
Close regedit. 13.
Log off and log on.