If it were me that was trying to recover the hard drive, I would boot up a Live Linux Distro from a USB stick and with luck I will just be able to read the data and pull off files to another storage to reduce that 96 % to the 80 to 90 % level.
For a start you need to check the SMART values and I suspect those will be OK and what you have (most likely) is a jammed up hard drive being 96 % full which Windows doesn't like.
"Disk Drill 4 for Mac gets major update with T2 chip support, RAW photo recovery, more".I think you are tackling the problem incorrectly. "Recover accidentally deleted Files with Disk Drill for Windows". "Disk Drill file recovery app moves to 2.0 release". "Mac Data Recovery Software Disk Drill ported to Windows".
Data extraction from devices with the T2 encryption chip.Updated FAT32, NTFS, HFS+, and APFS recovery algorithms.Extra features: duplicate file finder module, faster byte-to-byte disk backups and much more.Bootable disk creation for data recovery.Improved standard preview of found files.Completely free data recovery up to 2GB.improved: FAT and NTFS systems low-level reading.
Fixed: occasional exceptions on Mac OS X 10.6.8.Internal: software protection and activation improved.File systems: Quick Scan internal procedures updated.Damaged drives: bad sectors management improvements.Deep Scan: DNG (Adobe Lightroom Raw images) recovery with Deep Scan.Support the recovery of stereo images in MPO format.
“Allocate Existing File System Data” scan method is now available for free in Disk Drill Basic.Mounted disks and disk images can now be ejected right from Disk Drill.Recoverable files can now be previewed with hex view.Completely redesigned HFS+ Catalog File Rebuild recovery algorithm.More file type signatures added to Deep Scan.64-bit ready internal daemon (responsible for Recovery Vault, S.M.A.R.T.
The Mac version of Disk Drill Basic provides recovery from HFS/HFS+ and FAT disks/partitions (only the paid Pro version can actually recover files, the Free version will only allow Previewing files). Thus making it possible to restore deleted files with their original file names and location. Recovery Vault runs as a background service and remembers all metadata and properties of the deleted data. The core of Disk Drill Basic is a Recovery Vault technology which allows to recover data from a medium that was secured by Recovery Vault beforehand.