Open Command Prompt (cmd) as Admin.
DISKPART> list disk Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 298 GB 7168 KB Disk 1 Online 931 GB 0 B Disk 2 Online 1862 GB 0 B Disk 3 Online 7702 MB 0 B
Select the required disk:
DISKPART> select disk 3 Disk 3 is now the selected disk.
Make it read only:
DISKPART> attributes disk set readonly Disk attributes set successfully. DISKPART> exit Leaving DiskPart...
To clear the read-only attribute:
attributes disk clear readonly
Note that the readonly bit is not absolute. Viruses can ignore the bit.
Joel G Mathew, known in tech circles by the pseudonym Droidzone, is an opensource and programming enthusiast.
His favorite pastime is grappling with GNU compilers, discovering newer Linux secrets, writing scripts, hacking roms, and programs (nothing illegal), reading, blogging. and testing out the latest gadgets.
When away from the tech world, Dr Joel G. Mathew is a practising ENT Surgeon, busy with surgeries and clinical practise.