Gears 5 requires approximately 59 GB of disk space and may vary slightly dependent on your system. Additional language and optional texture packs are also available, but this will increase the size to approximately 65 GB.
Note: PC players examining disk space may notice a folder named "MSIXVC" which will appear similar in size to the Gears 5 install folder. This is a side effect of how the installation uses a file system feature called junctions - it is not a second full copy of the game. If needed, you can verify the actual space consumed by the game on your hard drive under “Add or remove programs”.