Use the doscommand to lock and format the hard disk.

Comments: More and more virus programs are destroying computer data. Some viruses are more directly formatting hard disk partitions. In fact, we can use small commands to prevent virus programs from formatting hard disks and other destructive operations. Use NotePad to open the Autoexec file under the root directory of the C drive, and add the following statement: C:> doskey f. More and more virus programs destroy computer data, some viruses directly Format hard disk partitions.
In fact, we can use small commands to prevent virus programs from formatting hard disks and other destructive operations. Use NotePad to open the Autoexec file under the C root directory and add the following statement: C: \> doskey format = Bad command or filename!
C: \> DOSKEY del = Bad command or filename!
C: \> DOSKEY deltree = Bad command or filename!

Then, save the disk and exit. In this way, when you call commands such as FORMAT, DEL, and DELTREE, the system displays Bad command or filename and rejects the operation.