Hello,
Today I am going to tell you "How To Write Protect You USB Drive"
What is Write Protecting the USB Drive?
According to me,Write Protecting the USB Drive is to Lock The USB Drive.That means,No one can Delete,Copy,Send Files to your USB Drive. (Works only with software).
Why write protect your USB flash drive ?
When you put your USB flash drive in a pc infected with virus, the virus gets attached to your pen drive and then it infects all computers where it is used. But sometimes we are forced to use pen drive in such pc. So is there any way to prevent virus getting infected in a pen drive ? If your pen drive has a "make read only" switch, then you need to just make it read only before inserting it into a suspected pc. But nowadays most pendrives do not have such "make read only" switch, so the following solution may be handy.
There are Two Ways to Write Protect the USB Drive.
1. Editing the Windows Registry.
2. By Software.
Write Protect by Editing Registery.
1. Open the Registry Editor (Open the “Run” dialog box, type regedit and hit “Enter”).
2. Navigate to the following Registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\
3. Create a New Key named as StorageDevicePolicies. To do this right-click on Control, and click on New->Key and name it as StorageDevicePolicies.
4. Now right-click on StorageDevicePolicies and create a New->DWORD (32-bit) Value and name it as WriteProtect.
5. 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 yourUSB flash drive. Any attempt to copy or download the files onto the USB drive will result in the following error message being displayed.
"THIS DRIVE IS WRITE PROTECTED."
Note: With Registry Editing,Write Protect may or may not work.It was tested by me and It was unsuccessful So I suggest you all to Use the Software.
Write Protecting The Drive with Software.
To Write-Protect Your USB Drive with Software. Click on the Below Link to download.
This Software is Made by -NARESH MANANDHAR (Special Credits)
After Downloading,Extract the Content of this .ZIP File to a Safe place.You'll Get Two Contents.
1. Disclaimer.TXT
2. USBWriteProtect.EXE
Please Read the DISCLAIMER.TXT file before running the software.
Now Run the File and You See something like this--->
Instructions To Use the Software.
First,Eject all USB Drives connected to the PC.(As it may stop the software from functioning fully.)
Then Open the Software.Now Attach the USB Drives you want to Write-Protect.
Then Check the Option of "Enable Write Protect" and Hit the Button "APPLY"
in the Protection tab of the software.
Now,To See if the software is really working,Notice the Icon of the "Protection Status" window of the software.If you see a Green Tick Mark then,the USB Has been write protected.
Now try to make changes to the Content of the USB Drive.For Example:Try Deleting one Folder or trying making a new folder in that USB Drive.Or,Try copying a folder from my Document to USB Drive.
Now,If you Plug-in the USB Write-Protected Drive to any other Computer too,You can't make changes to it,until you have Installed the "USB Write Protect" software on that PC.
To Turn Off the Write-Protect Settings,Just open the software again (this time attach that USB Drive too)
and just Tick the Option of "Disable Write Protect" and Hit the Button "APPLY".
Now Plug-Out your USB Drive and Do the above step again.Now Insert the USB Drive again and See if Red Cross Mark is there in the "Protection Status" tab of the software.If there is Red Mark,then its Write Protect Disabled.
This Post by-
KANISHK SINGH 
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