Excel performance degraded with upgrades

R

Robert Grether

Junior Member
I recently upgraded my 32 bit install of Windows 7 Pro to a 64 bit install of Windows 10 Pro Anniversary edition. I have plenty of RAM and processing power (2015 Macbook Pro 15"), but nevertheless there has been a noticeable downgrade in the performance of Excel using the new virtual OS. I have tried a lot of things, such as turning off some of the visual effects, allocating more RAM (though never more than 1/2 of the computer's), but nothing makes a difference. There is so much less latency on my old Windows 7 virtual OS or on my PC at the office. I kept the Windows 7 OS so I am not up a creek, but I would have thought upgrading would have been a performance improvement for Excel on Parallels, not a downgrade.

Any thoughts would be much appreciated.

Parallels 12
Windows 10 Pro Anniversary Edit.
 
Dear Robert Grether, run a full-system scan to remove possible infections, if you didn't scan your machine before upgrading.

1. Launch the Task Manager > select the Startup tab
2. Filter the apps according to their Startup impact rating > disable the apps with a high impact on startup, but keep security software.
 
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