Just now, I've accidentally wiped the first few GB of my hard drive. Luckily, this has happened before, and I added a buffer partition (which I don't care about) at the start of the drive. The overwrite only happened at that zone.
I know the exact start and end offset of my actual data partition. However, the last time this happened, I needed to recreate the partition using GParted on Linux. Is there an equally convenient tool on Windows?