[Centuries]

kali linux will give you full permissions I believe.

[imtomdee]

Best way is to put the game on a flashdrive man! i used to play minecraft in my photoshop craft ahaha

[Nouk]

Best way is to put the game on a flashdrive man! i used to play minecraft in my photoshop craft ahaha

This worked well for me and completely bypassed it! FlashDrive FTW

[Cyber Saint]

The whole flash drive option might be a good idea if you actually have a flash drive.

They're pretty cheap, and League of Legends really doesn't take up a dramatic amount of space on a flash drive, so you should be good with a relatively cheap one. Other than that, have you tried installing other games that actually require an installation and such? For example, Team Fortress 2. Another question would be how much available space is there on the hard drive. (Usually C:/)