I tried to go through windows setup and delete the partition but it said it was an OEM partition and couldn't be deleted.
I then had a quick look how to do it and done the following:
Went to diskpart
Selected the drive
selected the partition
then deleted it
I now have an empty bit of space of 36gb. How do I combine it with the other 892gb?
Will the fresh Windows 7 installation sort it out or do I need to do something before hand such as part 1 of this SSD / HDD : Optimize for Windows Reinstallation