Outlook 2016 using lots of resources

pitman44 · 10 Feb 2016

I have a Dell Alien that was on Win 7 Pro 64bit. I upgraded a couple of weeks ago to Win 10 Pro 64bit. I have what I think MS calls Office 365. The subscription model that lets you run Office on multiple machines. Last weekend I upgraded from Office 2013 to 2016. I primarily use Excel, Outlook and Word. No apparent problem with either Excel or Word.

The problems with Outlook start as soon as I boot it. Typically I see the working display a few times a day for a second or two. Once Outlook is up and I'm in it, the working display is up about 50-75% of the time. When I bring up task manager Windows Problem Reporting is active and taking 10-15% cpu. System and Compressed memory goes from usually under 100MB to 1500MP within two minutes. Within a few more minutes it's around 4000MB. Bandwidth usage is very high when Outlook is up. Both sending and receiving. I have no problems with Outlook in safe mode.

When I shut Outlook down, the high bandwidth usage goes away. Windows Problem Reporting apparently terminates. CPU usage drops to a more normal range. System and Compressed Memory stays pretty much where it was before I ended Outlook

I've disabled all of the addins in Outlook. Made sure the drivers are up to date on my system. Not sure what to do from here and would surely appreciate some guidance.

simrick · 10 Feb 2016

pitman44 said:

I have a Dell Alien that was on Win 7 Pro 64bit. I upgraded a couple of weeks ago to Win 10 Pro 64bit. I have what I think MS calls Office 365. The subscription model that lets you run Office on multiple machines. Last weekend I upgraded from Office 2013 to 2016. I primarily use Excel, Outlook and Word. No apparent problem with either Excel or Word.

The problems with Outlook start as soon as I boot it. Typically I see the working display a few times a day for a second or two. Once Outlook is up and I'm in it, the working display is up about 50-75% of the time. When I bring up task manager Windows Problem Reporting is active and taking 10-15% cpu. System and Compressed memory goes from usually under 100MB to 1500MP within two minutes. Within a few more minutes it's around 4000MB. Bandwidth usage is very high when Outlook is up. Both sending and receiving. I have no problems with Outlook in safe mode.

When I shut Outlook down, the high bandwidth usage goes away. Windows Problem Reporting apparently terminates. CPU usage drops to a more normal range. System and Compressed Memory stays pretty much where it was before I ended Outlook

I've disabled all of the addins in Outlook. Made sure the drivers are up to date on my system. Not sure what to do from here and would surely appreciate some guidance.

Hi pitman44 and welcome to Tenforums.
I would say try a repair to Office - right-click Start>Control Panel>Programs and Features, wait for the installed programs list to populate, then highlight Office and select Repair from above the window. You should get two repair options, a local one, and an online one. The local one is quick, and may do nothing. The online one is almost like a complete new install and will require you to sign-in to reactivate.

You say you've got all add-ins disabled - that would have been my next guess. But the bandwidth issue is really odd/suspect. What happens with the bandwidth if you select "Work Offline"? I would run a Malwarebytes Antimalware Free (full) scan to see if anything comes up, just to be sure. I would also view the Reliability History (search in Cortana/search box), and see if any clues are found there.

That's about all I can think of ATM. Hope it helps.