I'd try the extend command at https://superuser.com/questions/1312748/ssd-displaying-incorrect-size-despite-having-no-unallocated-space because what we may need to do next could wipe the drive.
Hello, I recently came across a Dell Optiplex 7010 that was free and found its way to my mom's boss as a working computer. I sold her the computer about a month ago, and 2 weeks ago the PSU failed. I ordered a new one which came in today and is the same as the original model and after installing it, im getting boot device not found errors.
After going into the BIOS, I realized the SSD is being read by the computer as a 1GB HDD - Is there anyway to fix this? Is the SSD bad? I can not get it to post but when I popped in the Windows install disc, I can not reformat it and Windows still reads it as a 1GB HDD.

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