Point 5 - since the settings have been affected a Refresh will not likely resolve them.
Frankly I would do a full Reset now - less hassle in the long run as there is no way
to know what Registry settings or damage has been done.
Point 8 - check with Shadow Explorer however I suspect the issue you have is why it will
not install. Maybe clean out the temp files and folder and try again.
C:\User"Your User Name"\AppData\Local\Temp
Delete what is in the folder (anything being accessed will not delete so close everything - if
something will not delete skip it and delete the rest until all you can remove is gone).
Well you may have resolved the Restore Point issue however there is not way to know
what other issues will crop up.
(Easiest way to see and review previous entries is to open multiple tabs in your browser.)
Rob - SpiritX