Missing hard drive space?

[tight fart]

I've removed a Seagate 250Gb hard drive from an old server, my pc only showed it as 95Gb, so I was going to formal it and use as a spare, it wouldn't format fully (12 hours and 30%) so I quick format.
Still only shows as 95gb?
I can't see a partion and it's shows as empty.
So where's the other 150gb?

[Watchman]

Can you get to DRIVER MANAGER and view the HDD from there? It may have been split to have recovery partitions which are not visible without assigning a drive letter. You should be able to reallocate the space such that there's one single partition.

Obviously WARNING - you may lose all data in the process, etc etc so proceed with caution or back everything up first (best option).

[4x4Tyke]

Agree probably been partitioned.

https://www.howtogeek.com/101862/how-to-manage-par...

[Simon.]

Use DiskPart to actually investigate the drive, you can also use diskpart to erase / reset / clean the drive if needed.

Warning, misusing diskpart can seriously damage your day