Since the anniversary update there's been at least 3 updates. Manually update your computer and see if that fixes the problems. Regular Win10 updates are cumulative. It should only take one update. Good luck with the updates.
Thank you Moto. I have tried to manually update but so far it's telling me I am up to date. I'll try again tomorrow and see if something else turns up. From my Internet searches it seems I'm far from alone in experiencing this particular problem. Unfortunately there doesn't seem to be a 'one fix fixes all' solution or if there is I haven't found it.
I also have to keep in mind that if I want to roll back this update I have to do it within 10 days - something microsoft have kept pretty quiet about as previously you were allowed 30 days grace. I'm not a happy bunny.
Well I got the Anniversary update yesterday on my laptop via the normal updates and since then my CPU usage has been running at 98/99% which is not good and I don't have a clue why or how to fix it. I now have to keep my laptop plugged into the mains most of the time as it is fairly eating through my battery power. Anyone else experienced this at all...
I have Windows 10 on two machines (with all the updates); I am not experiencing what you are describing. I have no idea how to fix this problem. If no one else here comes to the rescue, it may be a good idea to post on the Windows 10 forums. I believe they will be better qualified to handle such issues.
EDIT: I did a quick search on the Windows 10 forum and found this.
Thank you for your contribution Sepiana. I did look at the link you provided and followed some of the methods suggested in the link to the Softpedia post but unfortunately nothing worked. I think I have possibly discovered the culprit but I still don't know what to do about it. When I look at my Task Manager I see that there are 5 instances of the Windows host process (Rundll32) running in the background each using approximately 15% of my CPU which adding them all up is a fair chunk of my CPU.
I have downloaded and run a tool called ProcessExplorer which I believe is like a beefed up version of the Task Manager and gives more information on the processes running in your PC but I will need to have a closer look at it to see exactly what it does.
I have been at this on and off all day and now I'm so tired that I'm not taking anything in so I will have to leave it for tonight and take a fresh look at it tomorrow.