If you uninstall a program and the left over files will not delete because they are still in use, restart the PC and then you should be able to delete them.

Another option is to download the free version of Revo Uninstaller   HERE      Use Revo to uninstall programs as it will also delete left over files and even left over registry entries. 

Have you tried deleting those files while in Safemode? By doing that, perhaps the programs using them will not be running.

THANKS fireberd,

i have already uninstalled the same

actually i have used datacard of airtel (manufactured by micromax), now after uninstalling it i am unable to delete the program files infect i have deleted all the micromax modems. and now i doesn't have the same datacard along with me to reinsatll and  uninstall with revo.

please suggest me another solution for the same.

thanks dear.

arun gupta

THANKS BUGBETTER,

i have tried it in safe mode but it didn't worked...

actually i have used datacard of airtel manufactured by micromax, now after uninstalling it i am unable delete the program files infect i have deleted all the micromax modems.

please suggest me another solution for the same.

thanks dear.

arun gupta

Thanks Fireberd,The Revo Unistaller program is excellent. My PC was causing me serious problems and I knew it was 1 of 3 programs causing the problem. Windows Unistaller wasnt working. I used Revo and my PC is working again. 

You will have to reinstall the program and then using Revo Uninstaller, uninstall it. 

Tom, the Revo Uninstaller does work well.  I use it myself and have considered buying the full version and supporting them but I don't need all the extras the full version has.

Excellent program. Thanks again Fireberd.