Disk Drive Failures and Data Loss from Windows PC (opens in new tab)

My Windows PC suddenly stopped recognizing my secondary internal hard drive, and when I check Disk Management, the drive shows as unallocated space or raw format, even though it contains years of critical personal and work files that I desperately need to recover. I've already tried running chkdsk, updating storage drivers, and connecting the drive via a different SATA port and external enclosure, but the system either fails to access the partition or prompts me to format the disk before use,...