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Win7 Logs In, Then Out Suddenly
Hi Everyone! I've offered to help a family member with a rather peculiar issue with their PC. Let me outline it as simply as I can:
Their PC OS: Win7 Ultimate 32bit
There's 4 users: Dad, Mum, Kid 1, Kid 2 - Dad and Mum have 'admin' accounts, kids have 'standard' accounts
On the welcome screen if you click on any of: Dad, Kid 1 or Kid 2's user accounts, windows logs in the logs out straight away going back to the welcome screen. However if you enter the 'Mum' account a black screen is displayed and an error message shows relating to a dll file (can't remember the exact name - will update this later).
Now if I restart the PC into Safe Mode, I still cannot log into the other 3 accounts but this time I am able to successfully enter the 'Mum' account.
I've searched around and so far i've done the following:
- Run a Malwarebytes Scan (Deleted a few pieces of malware it found)
- Gone into regedit and looked under HKLM/Software/.../Winlogon and checked Shell & Userinit values.
What else can I do? Any help is appreciated!