can you replace windows login with a more secure one?

so my problem is windows login is so easy to crack a toddler can do it, everyone in the house can get my password in just a few minutes when im not around, and snoop on my computer when im at work. and im getting really tired of it. all you have to do is pop in a cd boot up the computer wait and in a few minutes it will tell you all of the users and passwords on the computer.
so is there a 3rd party program that will either replace windows login or add a second login screen or something, is there anything i can do?

Set the BIOS to boot from the HD only and set a password for access to the BIOS. Don't forget the password.

Jacee said:

So why would someone (Parents?) carry a CD around to boot into your computer?

carry a cd? we live in the same house, and no its not my parents. dont ask, we have are reasons for being in the same house

LMiller7 said:

Set the BIOS to boot from the HD only and set a password for access to the BIOS. Don't forget the password.

oh yeah, duh. why didnt i think of that but is there anything out there that can replace the windows login or add a second one?

Full disk encryption stops people from using other operating systems to enumerate/change the Windows' accounts.

UsernameIssues said:

Full disk encryption stops people from using other operating systems to enumerate/change the Windows' accounts.

does full disk encryption effect performance, and will my backups using norton ghost still work? like if the hard drive fails and i replace it load the backup on to it will it boot or will the encryption cause it to be unbootable?

ekj111 said:

UsernameIssues said:

Full disk encryption stops people from using other operating systems to enumerate/change the Windows' accounts.

does full disk encryption effect performance, and will my backups using norton ghost still work? like if the hard drive fails and i replace it load the backup on to it will it boot or will the encryption cause it to be unbootable?

Unfortunately, I'll have to let others answer your questions. I just know that the company that I work for encrypts the entire hard drive. I've removed passwords from computers that we get from Ebay using the "boot to CD/DVD" methods you described, but those methods don't work once we encrypt the drives.