SOLVED: Cannot Install Office 2013 ProPlusww.msi error

If you are receiving the above error there are several things install you can do like:

1. clean boot
2. disable AntiVirus
3. repair your old Office Installation (assuming you are trying to upgrade)
4. run the System File Checker (SFC /SCANNOW)

but for me, I resolved the issue by:

1. Deleting ALL of the files from C:ProgramData\Microsoft Help\
2. Deleting ALL of the scheduled tasks in Task Scheduler

I found a number blogs like THIS one to be very helpful.