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Windows 7: after an MS update no one can log into computer, not even Safe Mode

28 Jul 2017   #1
FRONTYARD

win 7 professional 32 bit
 
 
after an MS update no one can log into computer, not even Safe Mode

after an MS update no one can log into computer, not even Safe Mode. it's not the keyboard, nor the passwords. i really don't want to reload the OS. any attempt to login says "invalid user or password". it does not even lock out an account after 6 tries, as it was set to. occasionally i will get the message "Welcome" and the spinner, but eventually it just comes back with the same error message about bad user/password. Why is it lying????


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28 Jul 2017   #2
Megahertz07

Windows 7 HP 64
 
 

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29 Jul 2017   #3
MSClin

Windows 7 Ultimate 32bit
 
 

Very unlikely that an MS update can cause this. Sometimes Windows just say that the password is invalid (when it's valid), even if you enter it multiple times, but it will probably let you in the account if you wait 10 or more minutes and then type the valid password. I just don't know what exactly causes this bug.
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29 Jul 2017   #4
Megahertz07

Windows 7 HP 64
 
 

I've seen this (log on error) more than once. It's because the user data where the password is saved has been corrupted or deleted.
Do a check disk.
Boot from the installation disk, go to repair, open a CMD window and type
chkdsk c: /f
Pay attention to the results.
My System SpecsSystem Spec
29 Jul 2017   #5
TechnoMage2016

Windows 7 Ultimate, SP1, x86
 
 

Quote   Quote: Originally Posted by FRONTYARD View Post
after an MS update no one can log into computer, not even Safe Mode. it's not the keyboard, nor the passwords. i really don't want to reload the OS. any attempt to login says "invalid user or password". it does not even lock out an account after 6 tries, as it was set to. occasionally i will get the message "Welcome" and the spinner, but eventually it just comes back with the same error message about bad user/password. Why is it lying????
Why is it lying? Wrong question! Right question would be, "How do I get back into my PC?".

I can think of two possibilities.
Boot up your PC with a CD containing a Password Removal tool.
Or...
Boot up your PC with your Backup recovery CD and then restore your last backup of "C:".

Beyond that, you probably don't have many options, except to take your PC to a qualified PC tech and have him/her fix it for you.

I AM a tech, and I've fixed similar problems many times, usually for free, if the PC is brought to me.

Good Luck,
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 after an MS update no one can log into computer, not even Safe Mode




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