USB Autorun Blocker – Prevent Virus Infection From Pen Drive

by Rohit Khurana on April 2, 2009



Most of the virus infections are caused due to virus spreading through pen drives, memory cards and other USB drives. Many of these viruses use autorun.inf viruses which cause the infection because of a small autorun.inf files which triggers the virus files on your pen drive.


When you double click on your USB pen drive icon to open the drive in windows explorer these autorun.inf files run the viruses files and copy them to your computer to cause virus infection.


In this post we will talk about a tool called “USB Autorun Blocker” to protect your computer from pen drive viruses.




Lets find out how does this tool protect your computer from autorun.inf viruses.


USB Autorun Blocker is a very light program, low on eating system resources. It gets loaded automatically into system memory.


How does USB protects from viruses in USB pen drive?

When ever you connect a new drive to your computer which contains autorun.inf viruses, it automatically renames autorun.inf files on the device and changes the attribute of autorun.inf file to be normal and visible to the user.


As a result you can delete the autorun.inf files on the drive and also delete all other virus files  on the USB drive, whose names are their in the autorun.inf files code.

Download USB Autorun Blocker

Also see:

1. Ninja Pendisk USB Protection Tool

2. USB Firewall For USB Virus Protection

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{ 9 comments… read them below or add one }

actinium April 2, 2009 at 10:14 pm

pretty nifty tool!

dolyn April 2, 2009 at 11:36 pm

hai rohit

i need your help..could you tell me how could i remove a pop up every time i start the computer saying that the scrip.exe path is missing or couldnt be found..

1) have i deleted something that i shouldnt have or
2) its a virus

ranjith April 3, 2009 at 12:20 am


i know an old school trick. Autorun on any drives, or dissk, are triggered when the autorun option is checked, i forget where, but there is a registry setting which can be changed and no autorun will happen for any new disks added. now if that doesnt work, you only need to remember to press the shift key while inserting the disk.

on CDs for example, if you insert a disk which has autorun file and press shift while inserting the disk till the time the disk has been read, the autorun will not trigger. i use this approach when i use my USB at internet cafes.

Rohit April 3, 2009 at 11:40 pm


remove the autorun file and this error will be fixed.

Kevinox April 14, 2009 at 11:01 pm

hi,thanks for your solution but when i attempt to reformat my usb there is still the write protect error

Mohan June 25, 2009 at 2:14 am

Hey rohit nice articale
i find some file in my pc wich is .BAT
so what i have to do?
How can i fix this problem

Juan June 25, 2009 at 1:24 am

Exellent. I was looking for a software like this.

Mark T July 16, 2009 at 4:37 am

I personally use USB Threat Defender. They claim that it has a unique technology(Proactive + Definiton scan) which not only prevents USB viruses from spreading but also detects and removes exisitng viruses from systems which not even the best Anti-Viruses can detect. It also fixes damages done to system.

Disabling AutoRun or using a AutorunVirus remover wont help
Read here:

All my office computers have this insatlled and it does a great job.

I recommend this to everyone for home and office.

jessica33 July 16, 2009 at 5:06 pm

another variant is naevius usb protector:

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