What will deleting the Unallocated partition accomplish? Will it add what is in that partition to my current 127.99 partition to give me my full 250gbs? I don't get what your saying. If I delete them, and reinstall windows, I'll end up with a pre-Service Pack 1 windows, which will then again only recognize 129.99. Will deleting the unallocated partition give me access to my entire 250gb hard drive?