There are 2 pints in 1 quart, so there will be 3 pints in 1 and 1/2 quarts.
Hi Niki, I understand that Windows Reader is the default Viewer for PDF files. What I was asking was how this was stored in the registry. The key HKEY_CLASSES_ROOT\.pdf key has (Default) = AcroExch.Document (if you have Acrobat Reader installed). In Windows 8 the .pdf key has (Default) =  (blank).
winsxs folder has very little to to do with windows update. most windows update files are stored under C:\Windows\SoftwareDistribution. read about it. on my windows 7 its 15 GB, on windows 10 its 5.3 GB so there is a huge improvement.