Hi Steve,
Half opens to a white screen then after about 30 secs closes.
Had tried every known fix and nothing worked then i suddenly read in my fortnightly mag on a similar topic a reader had written in that he found that if he uninstalled Trusteer Rapport that he had installed on Edge it suddenly worked.
Now i had Rapport on my Edge install so i uninstalled it and hey presto Edge suddenly worked again lol.
It all started from the last big update so Microsoft must have decided they don't like Rapport all of a sudden. So after weeks of frustration I now have a working version of Edge again without
having to resort to suicide lol.
So anyone having similar trouble ignore all the internet solutions and i bet you have Rapport installed so if you have get rid of it.