Every time I plug my Samsung tablet into my laptop's USB port, I receive a pop-up mes-sage titled: "Windows needs to install driver software for your CDC serial." Whenever I click on the option to locate and install the driver software, another window pops up in-structing me to insert the disc that came with my tablet. However, there was no disc in-cluded with the tablet when I bought it brand-new, so there's another option that I can choose, "I don't have the disc. Show me other options."

When I click on that option, yet another window pops up indicating that, "Windows could not find driver software for your device." Now I have two options: (1) Check for a solution, and (2) Browse my computer for driver software (advanced). When I choose, "check for a solution", I receive a message indicating, "Windows was unable to install your Samsung_Android."

Then I go back and choose the second option, "browse my computer for driver software," at which point a window opens titled, "Browse for driver software on your computer". It allows me to "Search for driver software in this location" and there's a drop-down box, but it only allows me to choose the D:\ drive, so I click on the "Browse" button which al-lows me to "Select the folder that contains drivers for your hardware, so I choose the C:\ drive and the computer searches and then tells me that it cannot find the driver software. What do I need to do in order to install the software so that I can sync this tablet with my laptop computer?

A little search found this:

Download the Samsung Kies software from the Samsung site and install.

It came from the Samsung forum site, a good place for answers for Samsung devices.

Link:
Found New Hardware - Samsung Galaxy S Forums : Galaxy S2 S II Forum

Windows may find the driver for you sometimes, but other times it needs a driver. Follow the above advice from app zalien to install the driver manually.

Back in the day, you had to do this alllll the time in win 98 and win 85 ;) Windows 7 just makes things easier. But only when it has the driver ! Also you can run Windows Update next time with the device connected, after it fails the driver installation. Look for optional devices, it may have the driver there for you.