Hi.
You dont need any extra software,your Windows ultimate have everything
If you had\have problems with your system then,
In this order,
You can try first to "fix" the problems using the
SFC /SCANNOW Command - System File Checker
If SFC didnt help then try
System Restore
If system restore didnt help then you go to the next step,the
Repair Install
If none of the above help then you have to make a
Clean Install Windows 7
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For
full system system back and restore read these,
Full system backup
Backup Complete Computer - Create an Image Backup
Full system restore
System Image Recovery