Drive was once used to as a boot recovery for mac osx. Got a different drive for that now and wanted to use this drive on Windows 7. When looking at the disk manager, there is a random 200MB partition that was used for the boot recovery for osx. (EFI System Partition). To delete this partition in Windows 7, do the following 5 steps.
- On the command prompt type diskpart and answer to any possible UAC prompt.
- On the new diskpart prompt, type list disk. Note the Disk ### column.
- Type, select disk ### (with ### being the disk you wish to delete. Usually the disk with partition 0 with a size of 200 MB)
- Finish by typing, clean.
- Type exit to exit diskpart