I'm on W8, did R2 this morning but I'm feeling so good by the end I'm squeezing out a little more each time. Today I reached 5K albeit it 39 mins instead of 30 mins but I'm super proud of myself.
If I can do it then anybody can, I was a very reluctant runner to start with but I'm so happy I've trusted the program and it's got me there. (As well as all the super advice on here).