How to encrypt a USB stick to a computer

Use of online Banking friends know, in order to ensure the safe use of funds, Chinese banks will generally use U disk as a way of encryption, only the use of the bank's U-shield to enter the network silver system. Inspired from here, in order to make their own computer security, to avoid others casually open their own computer to see their own private information, can you do a U disk, only the use of U disk to start the computer, the following said a simple U disk to start the computer Setup method:

The first step: To determine the U disk is what the letter, this step is very important, if the letter is not correct, it can not be the right USB disk to start the computer.

The second step: a U disk in a random build a file, file name and extension can be casually written, such as: KKWJ.3FL can, this is equivalent to an encrypted password. Only this file U disk to start the computer.

Step three: Create a batch file with a. bat on this machine:

Ifnotexisti:123.ljshutdown-s-t10-c "You can't start this computer."

Here I for u disk, this command is said: if the U disk does not exist in 123.lj this file, then shut down the computer in 10 seconds, and show "You can not start this computer" message.

Step Fourth: Set up the boot run bat file. Click Run, enter "Gpedit.msc" to open Group Policy, and navigate to the following path: "Local computer" policy → computer Configuration →windows settings → script (start/shutdown), and then in the box to the right, select the "Start" Item, Add the. bat batch file that you just created to the list of startup scripts, OK and exit.

Through the above four-step settings, at this time only use U disk to start the computer, did not insert a U disk will prompt and shut down the computer in a specified time. This method is relatively rudimentary and easier to crack. is not suitable for situations where security requirements are high. The boot script is not loaded in Safe mode because you may be able to unlock the shutdown instructions by entering "shutdown-a" in run, or you can boot the computer into Safe mode and remove the boot bat file.