Just received the Windows update for this today (Platform Update for Windows 7 x64-Edition (KB2670838)) and had to immediately uninstall.
Killed Firefox 19 and Explorer 9.
It may be OK with Explorer 10 but I don't want to be forced into updating and using Explorer.
Firefox is my primary preferred browser, so until it's fixed will not be installing this update.
It's interesting that since I posted last night, so many other people have started having similar problems.
After I uninstalled the update yesterday and it fixed everything, I forgot to hide the update and it installed again overnight. So I had to uninstall again today, which once again fixed my issues, so the update is definitely not right with some configurations.
If it helps others, I'm an IT Tech, so I went through a couple of different things before uninstalling as follows:
- Disabled all Add-ons - no fix. As I rarely use IE, I don't use the same add-ons in IE as I do in Firefox, so I did not expect this to work really.
- Restarted a number of times with various system settings disabled or altered - No fix
The issue I had with both browsers was that they simply would not startup, both displaying error messages saying the app had experienced issues with startup.
Now a possible fix and why it works for some and not others:
I also use the Roboform toolbar like others in this thread. It's such a normal part of my web use that it's just there all the time. Because of this, I have to admit that I did not disable the toolbar, I never even thought about it. So disabling it may fix the issue for me, not that I want to do that because I use it such a lot. I also have it installed in IE, so there is consistency across both browsers for me in that respect. It is the only toolbar I use.
If all those that had no problems would confirm it's use by them or not, I think it may go towards a real cause and provide an area where a fix should probably come from. ie Siber Systems Inc.
I'm going to put something on their forum anyway and see what they think, I'll update when I get an answer