Cultivation is just a launcher and has no impact on your game client. If you mean after patching your game, you undo the patch and play official normally.
#what do I do if I want official genshin after downloading cultivation?
dusky marsh
full wraith
uhh the thing is it doesn't let me log in
dusky marsh
On official? You didn't undo the patch
would be my guess, at leasst
without any info as to what the current state of your game client or what you've done to patch/unpatch, or what specific error you are getting, couldn't say anything beyond that
full wraith
how do I undo the patch...
dusky marsh
to patch, you put the file in - to unpatch, you take the file out
full wraith
w-what file