USB System Lock

If you're not satisfied with the securities provided by Windows perhaps you might be interested on this software called USB System Lock. This is an open source application which can be downloaded for free. The installer is very small with a size of less than 1 MB.

The installation procedure is straightforward and takes only about a couple of minutes. During the installation you will need to insert the flash drive that you are going to use to open your computer.  It then transfer the key to the flash drive. If you re-start your computer Windows is going to ask for your Windows password (as usual) and after that the USB System Lock will look for the key on the registered flash drive. If you don't have the right key it will display a message to insert the right key. You won't be able to use your computer until you insert the right key.

The way this software works is very much like the key to the door lock. You just have to be extra careful not to lose your flash drive otherwise you might end up re-installing your operating system. However, it has this feature wherein you can create a duplicate key on another flash drive. It's a good idea to have a duplicate key. Just keep it in a safe place.