How prevent unauthorized login in my computer

danell.aralar

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Jan 25, 2018
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Hello, need help my brother play too much games in the computer and I want him to stop. So I decide to delete his account from my computer so that he cannot access my PC any more.... That what I thought but once I got home I found out that he can still play games in my computer. He was able to even make a new account to play games with. So my question is how can I prevent other people accessing my computer and also prevent them from creating the account. Please help a life of a person is at stake!!!
 
Solution
Besides a BIOS password. You can also encrypt your hard drive. This also protects your data should someone remove the drive. Just don't lose the password. For more complete security. Pair a BIOS password with an encrypted drive.

Some versions of Windows support Bitlocker. It is the built in option. If yours does not have it. Such as a Home version of Windows. Use Veracrypt for encryption.

Bitlocker: https://www.windowscentral.com/how-use-bitlocker-encryption-windows-10

Veracrypt: https://www.howtogeek.com/howto/6169/use-truecrypt-to-secure-your-data/


Create a BIOS password. https://www.ifixit.com/Answers/View/110108/How+can+I+reset+bios+password You should be able to create a BIOS user and a BIOS administrator password. The same applies Windows but I recommend you create a picture password. https://www.pcmag.com/news/352809/how-to-log-into-windows-10-with-a-picture-password. So you have 2 BIOS passwords and a Windows 10 picture password. That's 3 levels of security but alas the BIOS passwords are too bleeping weak. Use M$'s 2 step verification . You can first enter your password. You will then need to authenticate that password via text(or email).

You could of course disconnect a sata cable from your HDD/SSD(s) boot drive(usually C:). That however could lead to breaking something if you're not careful.
 
Besides a BIOS password. You can also encrypt your hard drive. This also protects your data should someone remove the drive. Just don't lose the password. For more complete security. Pair a BIOS password with an encrypted drive.

Some versions of Windows support Bitlocker. It is the built in option. If yours does not have it. Such as a Home version of Windows. Use Veracrypt for encryption.

Bitlocker: https://www.windowscentral.com/how-use-bitlocker-encryption-windows-10

Veracrypt: https://www.howtogeek.com/howto/6169/use-truecrypt-to-secure-your-data/
 
Solution
Just make sure he doesn't have the password to your account or the administrator account. Delete all other users that don't belong and make sure the guest account is disabled or deleted.
There should only be 2 accounts listed on your computer. The administrator account (don't delete) and your own account (I hope you are not using the administrator account).
 
As gasaraki says - you need an administrator password, and your own.

Delete his account (unless he has documents, files, etc that he would need, in which case just change his password).

Change your account's password. Change the administrator account's password.

That should really be more than enough to do it.
 


Resetting a Windows password isn't very difficult if you have physical access to the computer and don't care if the owner finds out. If the little brother is tech minded and has nothing better to do. He'll figure it out. It doesn't take very long either.

A BIOS boot password can help prevent this. Assuming it can't be reset by removing the battery, the manufacturer did not make a rescue password and the person won't go so far as replacing the BIOS chip. It does not protect the files on the computer either. If someone has physical access.

Encrypting the drive will make it all but impossible. If the password is good.