Many a time, it becomes necessary for us to write protect our USB flash drive so as to protect it from viruses and other malware programs. As flash drives are so popular and most widely used to move data between computers, they are the prime target for attackers as a means to get infections spread around the computer world. Also, since USB drive is not a Read-Only Memory (ROM), the data inside it can easily be modified or deleted by malware programs.
But unfortunately, most of the new flash drives do not come with a write-protect feature as the manufacturers wish to cut down the cost of production. Hence, the only way to write-protect your USB flash drives is to enable this feature on your own computer.
Steps to Write-Protect Your USB Drive:
This can be done by adding a small entry to the Windows registry which acts as a switch that can be enabled to make use of the write protection or disabled to allow write access. Here we go:
-
Open the Registry Editor (Open the “Run” dialog box, type regedit and hit “Enter”).
-
Navigate to the following Registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\
-
Create a New Key named as StorageDevicePolicies. To do this, right-click on Control, again click on New -> Key and name it as StorageDevicePolicies.
-
Now right-click on StorageDevicePolicies and create a New -> DWORD (32-bit) Value and name it as WriteProtect.

-
Double-click on WriteProtect and set the Value data to 1.
Now the right-protection for USB drives is enabled on your computer (no restart required) and thus it would not be possible for anyone or any program to add/delete the contents from your USB flash drive. Any attempt to copy or download the files onto the USB drive will result in the following error message being displayed.

To revert and remove the write-protection, all you need to do is just change the Value data for WriteProtect (Step-5) from 1 back to 0. Now write access to all the USB devices is re-enabled.
Sometimes it may seem difficult to remember and follow the above mentioned steps each time you want to enable/disable the write protection. Hence as an alternative way, there are many tools available to automatically enable/disable the write-protection feature. One of my favorite tool is USB Write Protect by Naresh Manadhar.
Using this tool, you can limit write access to your USB drives with just a click of a button. You can download this tool from the following link:
I hope you've now understood how to enable or disable write-protection of USB devices on your computer.




How to Unblock Websites in Quick Time
How to Hide Your IP Address Online
How to Block Unwanted Emails
8 Registry Hacks to Tweak Your Windows PC
Ankit Das says
The software is not working on Windows 7 (SP1)..
@ Ankit Das
You need to run the application as an administrator (Right-click on the software and select “Run as administrator”). Only then it should be able to enable/disable the write-protect feature.
vikesh says
please help
dear shrkant follow you step Run command “How to Install Windows 7 From a USB Drive” and my pen drive or corrupted sow… or not formatted pen drive… show please help me
how to formatted pen drive
Om Kumar says
Yes it’s good but how to learn such things. Mainly focus on about registry and how to clean that and what’s the other use of that and how to that what to edit in registry.
shan says
hi am a bca student and u r the best, i want to desable my task mngr, my document and control pannel and command promt plz guide my self
Sumeet Kukreja says
Cool, But This will only be in my comnputer? When i plug USB in another computer so he can easily Modify/delete my data. Right?
@ Sumeet Kukreja
Yes! It works only on your computer. For other computers, you need to first enable the write protection before inserting the USB drive.
Nice Post
I like All The Content Available here..
please tell some trick to protect hard disk and pen drive…
I am Gaurav Garg From http://www.hackersfind.com
Thanks If You Post Related To HDD Safty
Om Kumar says
Yes it’s good but how to learn such things. Mainly focus on about registry and how to clean that and what’s the other use of that and how to know for different different things that what to edit in registry.
DEVIL'S BLOG ON SECURITY says
Nice registry hack
sam says
awesome !!
which college are you from , and from where did you get these info …
and how do understand every term of os.
m a noob , want 2 be pro.
well thanx really appreciated … : )
madhu prasad says
Yes,
It is working.
Thank you.
sam says
thanx …: )
dude r u ethical hacker or something ???
u r like “indian adrino lamo” ,,./../
well keep up the good work … !!!
Hack Primium Account says
Fantastic Tutorial Dude !!
rajkumar says
hello shrikanth
this is a good one post
but my question is IS THERE ANY PROGRAM WHICH CAN LOCK USB LIKE A folder lock WHICH REQUIRE PASSWORD WHILE CONNECTING IN EVERY COMPUTER
.
Nice trick sir……….
Rishi says
Great !!!! it Really works
@Nasim says
It really works
u need to remove the usb after assigning The Value
abhishank says
nice tutorial..
Ramraj says
nice work…it realy works
Vamsi @ HoverPcHacks says
Nice trick with registry!!! But beginners should be careful while editing registry values. Anyway thanks for sharing this nice tip.
AllCelebrityBlogs says
Hey,
Nice one, Thanx for sharing. However, I have heard now a days usb flash drives are coming with some hardware lock as well. Is that true?
Jamie says
Hey really informative post.
during net surfing i found http://hackingpress.blogspot.com/
this website useful.
and looking for further new posts 🙂
Really useful..thanks a lot…Like all the tricks on this site..
Zeeshan says
Hello, this protection is getting reflected on my computer only. If we want to secure our USB flash drive from reading and writing to other system then wats the procedure??
@ Zeeshan
I will come up with a new post on your query…
shiv says
i want people to see the data/video audio in the thumb drive, but they should not copy that to other System/devices. how can i do this ?
Adrien DAVIN says
My website is in french. Gohacking is a superb website!!!!!
how to make a cd/dvd uncopyable plzz reply me
Abdi fatah farah Ali says
ok.nice work…it realy works
A very useful article.Thanks for sharing
Rk says
after doing above steps will it possible for a virus to enter my PC’s Hard Disk
after opening USB drive
Aniket says
Thi i really great thing. Thank a lot 4 thi tech. If u have more idea of virsu so,pl. tell m……. Thanx…….
Hello Sir,
I’m reading your posts since 3 (or more years , don’t remember exactly) years. You are an inspiration for me. I started learning Programming languages after completing my 12th two years back.
Right now, I have created hundreds of .Net Applications and games editing tools (for GTA) written on C#.I’m working on a talking sensible robo.
All the credits goes to you and I would to express my thanks to you for sharing these wonderful thoughts and post.^_^
Rk says
Hi,Srikant
can u please tell what will happen if i install windows update.
I am using windows 7
Rabin says
Yes it definitely works. thanx for the post 🙂
RYME says
…? My Regedit isn’t working, it says: “Registry editing has been disabled by your administrator.” Even though i opened it again, by using “Run as administrator” it still gives me the same pop-up message, and won’t let me access it!! Help!! How do i enable it??!!??
@ RYME
I suspect your PC to have a virus/malware infection. Perform a full system virus scan and see if it helps!!!
Manish says
it’s really amazing.
Nishan Pandit says
It only works on the computer where u have done the above info. not in the pendrive or usb
haravinth says
for 62 bit how its work.
what a trick……….
Sam says
How to create own bootable file?
Can u help please!!!!!
Hey dude my pendrive is already write protect but its not a re enable so how can i do to re enable my pendrive plz tell me dude
Jaybee says
This stuff is soo cool.. nobody messes with my system and flash drives again.. Thanks man!!
gyana 001 says
well i wana to instal xp wid the help of usb device….will u help me ??? i shall be highly thankful to u 😉
Rakesh Sahu says
Thank you very much sir very nice tricks.
It’s working…….
spidy says
hii… Srikant
yr site is amazing and full of hacking tricks.
saad says
sir,u r great,thanks 4 all,
Alven says
I’ve know a lot on this site.. keep going men..!! hehehehe..
Sajjad says
but this technique only make the flash drive protected in users(my) computer..but it’s not protected when it’s used in others pcs..is’nt it?and its nt alwys possible to edit d registry of others pc..so how can this bug be fixed???
HHH says
How to run .bat file automatically when pendrive is connected?
Arun says
thank you iam using winbubble to lock write protected now no need winbb… thank you
krishna says
THANKS FOR INFORMATION
Jeah says
Thank you so much for this! It really helps! 🙂
GBU!
SAIKAT says
i think this will work for me only… if someone use my pendrive he can easily use / write to my pendrive
kunal gupta says
hey can u please tell us how can we remove this write protection ?? by mistake my pendrive is write protected and i want to remve that protection
Seye Cole says
Hi guys,
Here is my challenge: After setting the write protect on my external hard drive, i figured i could copy files and folder from the hard drive to my computer but i couldn’t copy anything from my computer to my hard drive.
Here is what i really want: I want that i shouldn’t be able to copy anything from my external hard drive to my computer. Thus, the reverse of the challenge stated above.
Please help me as this is urgent. Need to get this done for a client for some bucks. Y’all know what i mean. Lol!!!