Hi B.J.,
My suggestion is:
Exit MSAS.
Remove from the Control Panel.
In Windows Program file, delete all the sub-directorys and the folder.
Look in \windows\downloaded Installations, for ant reference about MSAS and
deleted.
Final, look in windows\system32 for this files:
GcCollection.dll
Hashlib.dll
GcUncompress.dll
GcTyplibA.tbl
gcAntiSpawareLib.dll
gcUserData.gcd
if you see any of them, deleted.
Use Ccleaner with the issues (maybe you have to run twice the issues)
Disconect from Internet.
Exit any program on the task bar.(anti-virus or any other program running RTP_
And now Install.
Еиçеl