Thank you all so much! All my update issues are now solved for the moment.
After reading all the info here, I took a different approach.
I brought up Task Manager, clicked on Show processes from all users, and tried to find “msiexec.exe"--hmmmm, not there. I then found and stopped sprtcmd.exe twice. I was then able to install my failed MS OS, Word, and Excel updates successfully.
Just for grins and giggles, I tried to see if this would also fix my problem installing .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5(KB951847; Error code 652) and once again, blessed success!!
Would someone kindly explain to me what "sprtcmd.exe" is and what it does.