Game crashes consistently

Ever since 7.4 my game keeps endlessly chrashing I have no issues with any other application and had no issues on 7.3 and before. here's what I tried:

Repair client Reinstall graphic card driver Testing with legacy client Reinstall the entire game Lower graphics from maximum to minimum Did everything else in the crash guide Ran repair tool (again)

So I don't actually get a bugsplat or anything, I just get forced to my desktop where I still have the in-game cursor. I can't actually get back in the game though nor click anything on my desktop. The only thing what's left then is to close the leagueoflegends.exe in task manager under processes. My issue seems linked to graphical glitches. Most of the time while crashing I get weird random stripes or random grey areas on my screen or worse than that (added screenshot in the bottom of this post). Strangely when I lowered my graphics from maximum to minumum instead of the game crashing within less than 3 minutes (and most times under a minute) it took about 12 that time. Then the red side caster minions glitched, as in they had thin red stripes towards the bottom of my screen and then it crashed within 10 seconds. In the R3d logs I noticed this:

000011.658| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "C:/Riot Games/League of Legends/RADS/solutions/lol_game_client_sln/releases/0.0.1.163/deploy/Data/Menu/IMEConfig.xml" because it's not in the manifest.

I did some digging and more people have had this, but the fix was to disable some Xbox app in Windows 10, however I'm running Windows 7 and as far as I am aware Windows 7 does not have an integrated app like this.

Also in the log there is a lot of this in general:

000028.829| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Spells/turretbackdoorbonus.luabin" because it's not in the manifest. 000028.830| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Spells/turretdamagemarker.luabin" because it's not in the manifest. 000028.830| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Spells/turretfirstblood.luabin" because it's not in the manifest. 000028.857| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Shared/Spells/root.luabin" because it's not in the manifest. 000030.762| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Characters/SRU_Blue/CharScriptSRU_Blue.luabin" because it's not in the manifest. 000030.762| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Spells/npcinitializer.luabin" because it's not in the manifest. 000030.763| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Spells/monsterminiondamageamp.luabin" because it's not in the manifest. 000030.763| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Spells/monsterminiondamageamp.luabin" because it's not in the manifest. 000030.795| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Spells/monsterminiondamageamp.luabin" because it's not in the manifest.

The entry that starts with DATA/... can pretty much be anything.

I also have a lot of this:

000028.281| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Items/3455.luabin" because it's not in the manifest. 000028.281| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Items/3931.luabin" because it's not in the manifest. 000028.282| ERROR| Riot::RADS::IO::OpenFile: RADS cannot open file "DATA/Items/3715.luabin" because it's not in the manifest.

Where again the actual file can be pretty much anything, as in the number between items/ and.luabin can be a lot of different things.

I uploaded the full log and it can be found here: http://m.uploadedit.com/ba3s/1488632045601.txt

An example of a random pretty hefty graphical glitch causing the crash: http://imgur.com/a/x44uR I've had this in multiple colours including yellow, white and black.

I hope anyone has an idea that may help me.

edit: fixed links which don't seem to be working.