Re: Need help extending hdd with Seagate Discwizard
I'm not really familiar with Seagate Disk Wizard but I guess it's a partitioning tool.
So I'm assuming you have a 3TB hard drive, with a 2TB partition and the rest is blank/unused?
I would suggest trying another partitioning tool to expand the volume to fill the unallocated space. Easus Partition Master is a pretty good (free) one.
Bear in mind that if this is your primary hard drive and your operating system is on it, you might have trouble. special drivers may be necessary for windows to operate on a volume larger than 2 TB. And your motherboard has to support UEFI to do this.
Also, if you partition is of the MBR type, you will not be able to extend it. MBR has a max size of 2TB. The only way in this case is to either create a second volume, or erase the disk and start over with a GPT partition.
Backup everything before doing anything.