So i got a 4tb sea gate external hard drive for pc back in march and i formatted it for xbox instead because i needed xbox storage now i want to use it for pc again so i managed to format it to pc readable format and it worked but in the process i accidently split it into two partitions so one is 1.99 tb and the other is the other half of the hardrive but only the one side is usable and i cant delete the other one to make one big one i have tried loads of different softwares but nothing is working can i have some help please?