You have serious problems, and are barking up the wrong tree looking for a "quick, efficient (not too difficult and preferably free) way to convert everything back to NFTS once it has gone RAW so that I don't have to keep reformatting".
"Raw" in MS Disk Manager parlance means the drive is unrecognized, in other words unformatted. This notion of "converting" a raw disk to NTFS is the unfortunate consequence of young people on the internet writing how-to web pages when they don't actually know very much. So there isn't a shortcut for a drive that is actually not formatted. You have to format it. It's not a "conversion" it's just formatting. It hasn't "gone raw". It's been corrupted.
Forget formatting shortcuts, and focus on your real problem: you have a drive (apparently multiple drives, since you say it happened to the replacement as well) that keep getting corrupted to the point of unrecognizability. That is the problem you need to fix, and then you will never need to format the drive again.
Is this a USB or e-SATA drive? Do the two drives share a common cable or enclosure? That could be the problem. I suggest you start by plugging the drive (the newer one) into a different computer, and see if that computer can recognize it as formatted. If the other computer sees the drive as normal, the problem is with your computer.
If you don't have another computer, find one. Go to a Best Buy or something and let the Geek Squad look at it.
If the drive seems ok and thus the problem is with your computer, and you should first try using the drive on a different port, preferably a different controller. If the problem then remains, you should seriously consider reformatting your entire computer and reinstalling Windows for a clean start, because you would either be having hardware problems or driver problems, or a virus perhaps, that are causing disk corruption, and it's hard to think of a more serious problem.
If the other computer indicates the drive is truly corrupted, then you have to look at factors like cables, ports, controllers, drivers, other software (viruses), and user error.
On the chance that your behavior is causing this, disable write-caching for the drive and make sure it's optimized for quick removal. This will help protect you if you are in the habit of unplugging it without properly dismounting it.
Once you have your system working reliably, you can invest in software like Macrium Reflect, which will make disaster recovery faster and easier. But what you need now is to fix the real problem.
Also keep in mind, this is an audio software forum. There are people here who might not mind trying to help you, but this may not be the best resource in your situation. You might be better off going to someone with experience who can get hands-on, to devote serious attention to a serious problem.
I hope this helps. Good luck.