How to block your computer so only you can start it.
Almost everyone has its own user and password to access Windows. A measure that although it protects us so no one can access our computer and dispose of the information have in it, it’s not entirely reliable. Because in case our laptop is lost or stolen, anybody could have access to all of our information if they boot the computer through a CD, DVD or USB, or even installing another OS.
Therefore, if we want to improve our data security, besides encrypting, we can set a Hard Drive booting password and avoid that someone can start the system easily. For this, we have to enter the BIOS or UEFI and in its settings add a password to block the computer so no one can start it up without it.
According to the manufacturer, the method to access our computer’s BIOS may vary, though normally you can enter by pressing any of the keys Supr., F2, F10, F12, Esc, etc. while the computer is starting. If we don’t make this way, then check the user manual or contact the manufacturer.
How to block from BIOS or UEFI our computer so no one can start it
Once in the BIOS we must look for the HDD password option that will probably be under the security tab. Due to that the menu options may vary from one manufacturer to another, in case you don’t find the option, it’s advisable to check the user manual of the motherboard. Once we have found this option, we will set a safe password and after that restrict the start mode so it can only be booted from the hard drive so blocking your computer.