Thank you for your reply. Having already searched online for a solution I had already read both of those links you submitted. In fact both of those links state things I had already checked and tested.
I use Avast, and I disabled that. It made no difference.
However, I did not try a clean boot option.
To be perfectly honest I do not have the time to try half a dozen different things that may or may not work every single time I need my Windows machine to do something it was designed to do. Frankly, it is a shoddy product and the worst thing to come out of Microsoft since Vista.
I have been using Microsoft at admin level from DOS 5 onwards and never has a client based OS been so damn awkward to use or so prone to failure. Help files are useless, online resources are contradictory and inaccurate, forums like this provide "hit and miss" scatterbomb guidance - never in my 25 years of using Microsoft has a windows user had such a dark day as where we are with vista and what came after.
To save my sanity, I downloaded a backup management tool instead and I have opted to use this because Microsoft's products are just not up to the job and I cannot spend hours of my day figuring out why something doesn't work all the time. I would like to be able to just click "Hey windows do this thing for me - you know, the thing you were designed to do"....and then have windows do it, alas, it just doesn't work like that and so, better to just not use MS.