Problems

its a katastrophe

Are you running via steam?

hi
if under linux, do you have enough right to do this ?

my guess is the two main culprits could be folder permissions.. this can be fixed sometimes by changing the install location too. or anti virus. if its not those im not sure

if hardware issue == tue then,
problems writing to a drive for a specific program is not usual because it would affect other things too
else if software issue == true then,
maybe some kind of permissions or antivirus or directory indexing issue.. as i understand its not running the game thats an issue rather just installing the game

hi my name czesio :)
had same problem on win 8.1... i did try steam and non steam same problem
my solution was to rename last engine to the engine that i was unable to download
was able to play but i was unable to auto download maps but i was able to play :)
so try to go to zerok folder engine/win64 make copy of last engine u have change name to one u r missing
see it it works

or
grab this zipper

https://file.io/IeUSTUdI8Lhq

105.1.1-2511-g747f18b.zip
null; 38 MB

No, not yet, I will do this the next time the problem appears and then report the results. Thanks for the help so far.