Panle

I found out the solution, I needed the AMD driver updated and when I did, it stopped working but I haven't realized. I updated Win7 to SP1 so that GPU drivers started working again. DCS thought I haven't installed any drivers that's why it gave such error. Thanks for helping and I hope this will be useful for someone like me.

Done that too, still no luck. I will format the computer this evening, maybe that will work out because other games' performance dropped too. I will post if it worked or not. Thank you !

I only have F-15 addon from steam, nothing else. No mods installed. Tried reinstalling again but no luck with that either. What's new with this update, funny it just stopped working like that.

I removed the DCS folder from that place you said, but no luck. It's still doing the same thing.

I've done the check but no use. Here are the files attached. Thank you for replying! Logs.rar

Hey guys, steam updated my DCS last week and since then it's not starting up. I've started .exe with admin rights, then it gave me this error: 0xc000001d My specs are: Win 7 Ultimate 64 bit AMD A10-6800K CPU 8 GB RAM Radeon HD7850 GPU PS: Funny thing, DCS works perfectly on my Win 10 laptop. Same problem happened there but same solution won't work. Thank you guys.