Marc810 Appears to be a case of corrupted windows installation. Here are the possible options
1> Try restoring windows to the previous state using system restore.
2> Try resetting the windows installation.
3> Try a repair installation using a windows installation medium.
4> Install windows a fresh using a windows installation medium.
For the detailed steps use google and YouTube you will find several good tutorials. But in case you get stuck let me know will be glad to help.