That is intriguing. How do you know there is no data to use? What does Disk Management show you? Does it display Partitions with info about their size? Or, does it just show you a box or two with the label "Unallocated Space"?
In attempting to deal with this problem, did you try to do any changes to those disks? Did you do anything like write something to them (hard to do if Windows can't show them), or Format or Initialize them, or try using Diskpart to Clean or something?
Depending on the history and the info displayed by Disk Management, there are tools to recover data that has not been destroyed. But they work on a HDD that does NOT have a significant hardware problems. So your first step might well be to use some disk diagnostic tools to test for problems. There are good tools for this you can get for free that do NOT tamper with the data so that they are safe to use in your case. But there are others that can destroy data, so you will need to pay attention to what they say they will do.
To start, what manufacturer made the HDD's? If they were from WD, go to their website and download and install on your working C: drive their Data LifeGuard utility suite for Windows. These tools will work only on HDD's from WD. If they are from Seagate, get their SeaTools for Windows utility. If from another maker, check their website for free diagnostics. In each case they will present a menu of tools to use, and the simplest ones that do NOT try to FIX something will not tamper with data. They will merely read info on the drive and then try to read stuff from the Sectors. Then they report to you what they find. First there usually is a system to read and report the SMART data from the unit - this is a summary of what the HDD unit already knows about its state. After that, often there are a Short Test and a Long Test. The Short tries out a sampling of the HDD to see if anything works OK. If it passes that, you can run a Long Test to read from EVERY Sector and find any that are faulty. If the disk passes both of those, then the HDD has NO hardware problems and all its difficulties are software-related. That is, somewhere there is a small chunk of corrupted data that Windows cannot make sense of, so it can't do anything. This is good, because that would indicate that data recovery tools CAN get your data back.
Do NOT use any tool that warns you that it will destroy any data on your disk.
So, if your testing shows the HDD's OK from the hardware perspective, post back here and we can discuss what data recovery tools you can try. NOTE that most such tools will NOT write corrections to the HDD, because that might damage your data. Instead they all want to COPY the files they recover to a separate place on a different HDD. Once all that data has been copied, you can wipe the HDD clean and re-Initialize it so it is fully functional, then copy all that recovered data back to it and destroy the first copy on the "other" HDD. So, to do this for each HDD separately, you will need space on a second HDD to store its recovered data temporarily.