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GTA V version? Latest
Up to date? Yes
Legit or Pirate copy? Legit
Steam/CD/Social Club? Steam
Windows version? Windows 10
Did you try to delete caches.xml and try again? 
Error screenshot (if any)
System specifications
Windows 10
i7-7700K @ 4.2GHz
16GB Ram
dual GTX 1070s
What did you do to get this issue? Trying to install it
What server did you get this issue on? None1
CitizenFX.log file
.dmp files/report IDs
If an issue with starting:
GTA V folder screenshot
GTA V/update/x64/dlcpacks screenshot
Filepath to FiveM folder
FiveM client folder screenshot
Did you try to disable/uninstall your Anti-virus?
Also add what you already tried so far.
I’ve wanted to try and uninstall and reinstall, but I can’t get it to actually uninstall