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@Lisa139 wrote:

It was fine until two weeks ago then when we install the 2020 program all these problems started. 

 

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Out of curiosity, have you tried uninstalling 2020 to see if that speeds up 2018 and 2019?

And 8GB of memory is a bit tight if Lacerte is a memory hog.  How much "free" memory is available when you are running Lacerte?  If you open your Task Manager on the computer (Control, Alt, Delete) and click Performance, it will show much much memory is being used.  In my experience, things tend to slow down once you are using over 50%, and then REALLY slows down as you get close to being full.