Have a DELL Precision 7710 running Windows 10 Pro x64 v1709, Office 2016 Professional x32, SOPHOS Central Endpoint, and BitLocker Encryption. Excel 2016 Professional hangs for roughly 3 minutes when opening a network file with links to other worksheets. Sometimes, it appears to be related to exiting protected view, via "Enable Editing". The problem is frequent, but it does not seem to happen 5-10% of the time. When the file opens correctly it takes about 15-30 seconds. System is up to date (Windows and Office) except for KB4088776 (which won't install). Other types of laptops (Latitude 5480) are exhibiting the same behavior (laptops are both docked and not docked). Here is a list of what I have tried.
Remove Realtek Audio Software (& disabled the Waves Audio Services) per DELL issue ( www.brucebnews.com/2017/07/a-possible-fix-for-the-excel-slow-file-opening-bug/
->Checked "Disable HW acceleration"
d "Ignore other applications that use DDE"
Detect & Repair Office (Basic)
Changed default printer to Microsoft PDF
Added network share as a trusted network location to Excel (in registry at HKCU\Software\Microsoft\Of
ed Locations) (specifying both UNC & Drive Map as locations)
Deleted Registry key HKCU\Software\Microsoft\Of
Tried a new LOCAL profile
Tried another never been used Latitude without Bitlocker Encryption
Turned off Intel speed step (BIOS)
Disabled Cortana (as in killed running executable, and renamed the Windows\SystemApps\Microso
Thanks in advance!