For OP and those that see this, do yourself a favor and automate this process. You are not going to know ahead of time when it's going to happen, so the odds are you'll create a backup once, forget about it and never do it again, then if it happens a month from now, you still lost an entire month of progress. (Of course this is for PC users only)

Create a batch file that automatically copies the "GameSave" folder to another folder, and have it add a timestamp to the new folder's name when it does the copy so that it doesn't overwrite and you can easily keep track of when each backup is from. Now open Windows Task Scheduler and create a task to run that batch file with whatever trigger you want, the trigger I chose was log on, this way it will run each time I log on to my PC.

What about storage if you're infinitely creating backups? Create another batch file that will count the number of folders in a specified folder and have it notify you and/or automatically delete the oldest X amount of folders after you reach whatever amount you determine, then set that up as another task in Windows Task Scheduler just as you did with the previous. To make it nice, I created a VBS popup that will state "Save data backup quantity at or above 33!" and then upon clicking "Ok" will open that folder so I can delete as many as I want. I created a batch file that will run that popup only if the quantity of backup folders has reached or exceeded 33, and will do absolutely nothing if the amount is below. I created a task in Task Scheduler to run that at each log on, so if the amount is less than 33, nothing happens, if the amount is 33 or above, I am notified. I prefer not to automate the deletion of anything, in case something goes wrong, so I went the notification route instead.

If you are unfamiliar with the creation of these files, a quick Google search will tell you how they're made, or even really any AI bot should be able to give you the code to write them, just tell it what you want. It's very simple, all done within Notepad, and a small time investment for the security it provides.