i want to start a new game but i dont want to lose my old save, can i copy my old save game, save in a folder or elsewhere, then paste and load the old save?

I bought this game several years ago and stopped playing due to a black screen bug. Right after escaping the initial compound, any time that I die I get a black screen with a heart beat sound. I can still seem to open menus based on the sound effects in the background but cannot get any visuals to appear. If I quit and go back in, none of my progress is saved and I must restart. It has been years since I've tried to play this game and just tried again with a completely new computer and have the exact same ...

haha.. so in arena, I was dominating the endless survival mode but in round 17 , some honey badgers came, gave me 2-3 bites and i'm dead. srsly? it sucks... also, I wish we could hang out with the chick who lets us in the arena, she's damn cute.

for like the bow and ak where do you aim this ♥♥♥♥♥♥♥ garbage to get a head shot? I got nothing here I will get like 8 headshots in a row and then be unable to land my next 30 shots on a single guy. Idk where to aim on the reticle to get the pile of ♥♥♥♥♥♥♥ trash to register a head shot let alone actually land consistently. I will die cuz 30 rounds to a guy 20m away just only appear behind them for some broke ♥♥♥♥♥♥♥ trash reason.. is there a mod to fix this ♥♥♥♥♥♥♥ garbage or is this just another fallout...

Just freshly installed the game again, still wont go past the splash screen without crashing.