If the problem recurs then I would run Factory Recovery to reset it to factory condition. Follow the steps given in your literature or on the Samsung Support Downloads webpage. Be sure to make your disks first to save as a backup method to running Recovery from its partition which is the most stable method.
You also have the option to get a superior Clean Reinstall - Factory OEM Windows 7.
But to do this I would shrink C to make a test partition to try the clean reinstall to see if all of the Samsung functions run correctly by reinstalling just the OS following the steps in the link. You may need to import software from the Samsung Support Downloads webpage for your model, and sometimes it doesn';t work well with Samsung's. So this is why I would test the Reinstall first and if it isn't satisfactory after seeking our help to work out the bugs then simply delete the test partition in Disk Mgmt. Partition or Volume - Shrink Partition or Volume - Create New
If you have questions on how to create a test partition or are prompted to convert to a Dynamic Disk, first post back a screenshot of your maximized Disk Mgmt drive map using the Snipping Tool in Start menu.