This is probably a good time to cover this stuff.
This isn't about FS9 per se, rather its about protecting your installed games.
I found it very cost-effective to back up my hard drives every couple of years.
This protects game files I've worked on in the past without having to re-install everything.
It also makes it much easier to find old files I had been working on in case I get some new ideas.
This will cost you a new drive (HD or SSD) and a remote/external drive case plus some Cloning software.
You should be able to find a nice external drive case plus power supply for something in the $30-$40 range.
Hard drives are cheap (relatively speaking) at roughly $40 for a 1 TB drive and are fairly bullet proof. They can fail, but it's usually rare when it happens.
Cloning software is usually free. I prefer a program called Acronis but there are others.
This is also handy in case you're starting to run out of storage space and you want to upgrade to a larger drive.
The basic idea is to Clone what's on your current drive directly to a new drive, then swap the new drive for your old drive.
You should do some basic maint. to the old drive (clean, defrag, full virus scan, etc.
before you Clone it.
Then, power down your PC and physically swap the new drive for the old drive.
I've done this on Win 98, Win Vista, and Win 10 PCs and they really don't seem to care. The new Cloned drive looks exactly like the drive it replaced.
Your old drive then becomes a back-up. Just unplug it and store it in the protective wrapper the new drive came in, and store it somewhere secure.
This is usually also a good time to do some basic cleaning inside your PC, check the connectors are all plugged in, install a fresh mother board battery, etc.
You can keep your old drive exactly as it was or you could also wipe and re-clone the old drive in case you installed new or updated drivers at a later date on the new drive.
I haven't switched over to running SSDs yet, but both types of drives seem to be staying (fairly) cheap, so this works out as some pretty inexpensive insurance.
This is also handy as a "time capsule". Let's say I either bought some payware or downloaded some freeware a long time ago.
I either want to add the old files to my new system or I need to re-install them.
I know where to find them, I just plug in the external drive and load the old HD into it. No more worrying if a web site goes extinct or a company drops support.
I also know
how I had my files set up. No more guessing where to install the folders. As a bonus, ALL of my old config files are intact and available and I know where they are supposed to go.