Hi Delo,
I see that you are unable to install the driver for Samsung TV DMR. I will help you with this issue.
1.What is the make and model of the computer?
2.Which security software is installed on the computer?
3.Did you make any changes to the computer recently?
4.When exactly do you get the message to reinstall the driver?
Method 1.
Kindly run the troubleshooter from this article and check: http://windows.microsoft.com/en-US/windows-vista/Troubleshoot-monitor-and-video-card-problems
Method 2.
Update a driver for hardware that isn't working properly: http://windows.microsoft.com/en-US/windows-vista/Update-a-driver-for-hardware-that-isnt-working-properly
Method 3.
If you face any issues while installing the driver, then boot the computer in clean boot and then try to install.
A clean boot helps to verify if any third party application service or startup item is causing this issue.
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7:http://support.microsoft.com/kb/929135
Note: After you have finished troubleshooting, follow step 3 in the article to boot to normal startup.
Refer.
Update drivers: recommended links: http://windows.microsoft.com/en-US/windows-vista/Update-drivers-recommended-links
Let us know if you need further help with any windows issue. We will be glad to help.