I am having an issue with the Exchange account of a person in our company. She uses Outlook 365 to access her Exchange account on our email host. When she attempts to open an email, Outlook will freeze for 5 to 30 seconds. If she already has an email open and she attempts to use the previous or next item arrows, the email will freeze, and a small blue circle will appear for the duration of the freeze.
A little over two weeks ago this user's hard drive became corrupted. I installed a new SSD into a spare PC of the same model and specs and configured Windows and patched it up. I then installed all of the normal productivity software including Office 365 which we started using in January of 2020. I configured her Outlook to work with our email host and installed the new PC that evening. I received a phone call the next morning from her and she told me she was having the problems I described above. And there my troubles began.
What have I done to try and fix this:
Please keep in mind I have tried many of these solutions multiple times across many PCs.
-created and recreated profiles about 20 times
-disabled graphics acceleration
-I usually run accounts in cached mode but I have tried both on her machines multiple times.
-disabled all add-ins. Tried add-ins one at a time. It isn't add-ins.
-safe mode. Yes.
-Contacted the host's technical support because I became convinced that the account had become corrupted. The tech set her account up on a VM and connected to the account using Outlook in cached mode. The tech was able to open and close email on the virtual machine without a problem. He insisted that I use AnyDesk to login to the VM to witness that it wasn't the account.
-After that, I configured her old PC with a new SSD. I just installed Windows 10 and Office 365. Same problems.
-After a week and a half into this, I became convinced it was the account and decided to move all of her email out of the account to a PST and delete the account. After I deleted and recreated the account, I sent 6 test emails from various accounts. I had the same problems with just those six in the account.
- This weekend I configured a PC with 32 Gigs of RAM and a M.2 SSD. I installed Windows 10 from an MS installation disk rather than the Dell restoration disk. I installed Office 365 and then configured Outlook. Same problems.
I have spent the last two weeks reading the same solutions over and over again. If anyone has some insights, I am open for suggestions. Thank you.