As we already know that windows has a feature to autorun any removable media whether it is a CD or pen drive whenever it is inserted to the system. Though for some of us it is a good feature which they love to have but still there are many looking for a way how to disable this feature.

So if you are among those want to turn off this feature then here you will definitely find a solution. This is small registry tweak to disable Autorun feature and this method works in almost all Windows versions including XP, Vista and 7.

1. Open Registry Editor (Press Windows +R and type Registry editor and press Enter). It’ll open Registry Editor.

2. Navigate the following key

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
may be some of you doesn’t find then you have to create it however it is very unlikely that it won’t exist.

3. Now I hope you have found the key Explorer pan to the right-side area, create a new DWORD value NoDriveTypeAutoRun and set its value to any of following according to your requirements:
FF – To disable AutoRun on all drives
20 – To disable AutoRun on CD-ROM drives
4 – To disable AutoRun on removable drives
8 – To disable AutoRun on fixed drives
10 – To disable AutoRun on network drives
40 – To disable AutoRun on RAM disks
1 – To disable AutoRun on unknown drives

Note you only have to type the bold letters in dword value popup box

4. If you want to disable Autorun on a combination of drives, you’ll need to calculate sum of the values. For example, if you want to disable Autorun on CD-ROM drives and removable drives, you’ll need to set the value to 20+4=24.

So in case if you have applied the settings and now want to disable the above restriction then simple delete the NoDriveTypeAutoRun DWORD value created in Step 3.