1. Try to upgrade to Win10 as fast as possible.
2. I was unable to run any miner using Windows 7 Blockchain driver
3. Try to read suggestions. You have 2x4G video mem, 2G RAM, suggested Vmem = 10 G but you "run out of options" setting it to automatic from 2G to 18G. Just set 18G, no min or max.
4. 2Gb is way too few for Windows, may work for Linux but not sure. Go to 4 Gb minimum
BTW sorry for offtopic, it's really not about Claymore 11.2 but about you basic software and hardware.
I don't understand why it has been running for over a month and now all the sudden it won't work.
I only have a 37gb raptor drive and I have been running basically all the extra vmem I have available. There is only about 14gb available on my other 290x rig, same 37gb drive.
It mist be Windows related but I don't think it's virtual memory issues.