[BF6 Start up error] This software cannot be used at the same time as the game.

It apparently has something to do with ASRock but can't view the forum page that has the fix (BF6 Beta forum). When trying to put two and two together, do you have ASRock APP Shop or something like that installed? Try if uninstalling it helps?

I am also having the same issue with something to do with the ASRock,  I am getting the same message.  I, personally, do not have the Auto Updater installed(which is the app) and I am launching in secure boot as well.  Hoping this thread can get the fix as I believe the page was deleted for some reason.

Same issue here. Finding a fix is almost non existent. Might as well just get a refund and change the motherboard

Same problem here.

I fixed it for me by simply renaming that driver located in "c:\Windows\SysWOW64\drivers\AppShopDrv103.sys" to "...\AppShopDrv103.sys_". Use this method at your own risk.

Funny workaround but it worked lol. thanks mate

Haha! Yeah I'm a software developer and know a bit how this stuff works. It might feel wrong to do this but in this case I decided that I don't need the functionality of this driver, which, if my understanding is correct (please someone correct me if I am wrong), is for updating drivers of the mainboard. Since I am happy to do this myself manually I decided that it's not a critical function I need in my system, at least less critical than playing BF6 now! Lol

I have the same issue and couldn't find a solution for many hours as i was watching solutions on redit and youtube here and there most 5 months ago  . apparently i refund the game as i hadn't looked into this post  . If any official solution poke to buy it again .

I'm getting this with the ea app as well only thing I found that works is just restarting my pc.... after that it works fine..... really annoying though

Just like the other people have said...it is the ASRock App Shop.  Uninstall it if you dont want the conflict.

Do people even read information completely anymore?

Additionally, if you removed it sometime ago...well clearly it didn't Uninstall properly and left a lingering sys driver service installed and will need to be removed using a SC Command in windows or you can reach out to ASRock.