It's claiming that Step 7 Basic is missing. However, I have Step 7 Professional.I did a clean install of SP1 just about 3 days ago, no problems so far.
What error are You getting while opening?
I intended to upgrade everything.Did you upgrade Step7 too or only WinCC.. You have to upgrade all you have
Via Updater.You can see best what can be upgraded in TIA updater.
Did you upgrade it manually or via Updater?
I installed V14 SP1 and I'm trying to ope a V14 project.Are you trying to open a V14 project or a V13sp1? I'm not sure what SP1 opens and what not...