I just installed a crucial 500gb ssd to be my only drive.
I cloned the original using the Acronis software.
Under Disk Management, the drive now looks like image shown.
Is 74.53GB correct as Unallocated
Hi there, I had a similar issue with a 1TB drive leaving me with about 650gb allowcated. Tried several tools to increase partition but accessed denied on my primary drive. The problem was as long as Windows was running, I could not get access to increase the partition. I used the free tool : https://www.partitionwizard.com/feedback/install-partition-wizard.html?from-free-v11 and it allowed me to increase the partition after a reboot. The increase happened prior to Windows 10 load and all is well. Anyone who has a partition issue I recommend using this tool!