So, my issue is simple - I cannot generate a world. I used to be able to do it, once or twice, but cannot anymore. I have gone through all possible solutions, such as adding exceptions to my anti-virus, compatability mode, changing WorldGenerator to non-read only (even though it doesn't stay unchecked, so I'm not sure), messing with temp files, etc, etc, etc. I've been at this for 4 hours now and nothing is working. I'm attaching screenshots of all relavent information I can think of. Please let me know if you need more.

have you tried setting your steam launch settings to -useembedded and running in 32-bit. that used to work for me