Moved this to Malware Discussions. It appears you have some kind of infection that is preventing the software from running or even instyalling.
Can you try System Restore to go back to before it all started> It can be invoked in Safe Mode if necessary.
If successful temporarily disable System Restore to rid your machine of the infection and then turn it back on.
If not possible, try running some tools from the last link in my signature below. Malwarebytes Free for example can be installed, updated and run all in 'Safe Mode with Networking' or there's a tool listed with it that allow it to bge installed in regular mode.
You could also run Stinger.