types of error at the start

Question 1

“No boot device available”

Answer 1

is an error message that indicates the workstation is not recognizing the hard drive.

Question 2

“Operating system not found” or “NTLDR not found,”

Answer 2

this would indicate that the hard drive was recognized but that the Windows OS was not installed properly

Question 2

“BIOS ROM checksum error”

Answer 2

would indicate an issue with the BIOS, not the hard drive.