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Multiple Instances of the 64 Bit Edition slows the Computer down

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Mathias (Author):
That is very strange.

Never seen anything like that
Since it is about the draw of the UI. then I suspect it is some conflict something that hook into windows. Some program that filters/look at all the UI messages flying around in Windows.  for example Global HotKeys program and such are know to be able to cause issues like that
But also Graphic drives since it is a UI issue. Or extra tools/utils that are running in the backgound for the grahics.
It can be a million things that causes this to happen.
When it is happening again, begin with closeing or killing from taskmanger other processes first that you see are running and see if it locks up the slow down. Then you might find that other process the conflict is aginst.
But if it is a drivers issue that would help.

There is nothing Special in MC that would make this happen.. MC do not do any system hooks or anything crazy like that.

Matthias515566:
It have to do with Microsoft Excel 2016. When i work a time with Excel, the Speed of Loading Tabs is very slow. When i end Excel, the tab loading speed is fast again. The slow down of the whole system is not easy reproducable, it seems this happens only after longer work. I used also multiple instances again. This problem have nothing to do with multiple instances of MC.

I normally never exit excel, therefore it was not easy to find out.

Edit:
Yesterday i reproduced also the slow down of the whole system. It happens only when MultiCommander and Microsoft Excel2016 running and used at the same time. It seems there is a conflict between Excel 2016 and MultiCommander.

Mathias (Author):
I also have Excel 2016 running all the time. Never seen that happen.
Strange...

Ulfhednar:
FYI I have MC running almost every second my system is on.
I run games, utils, encode video, edit documents with MS office etc etc.
MC is always transparent & seems to have no impact on performance.

If I was seeing as many strange issues as you are, I would be checking the hardware (corrupt or damaged HDD, RAM flaky etc) & running a verification on the Win install -
http://answers.microsoft.com/en-us/windows/wiki/windows_10-update/system-file-check-sfc-scan-and-repair-system-files/bc609315-da1f-4775-812c-695b60477a93

& making sure Win update patches are up to date + checking for virus activity.

Try things like Memtest www.memtest86.com & your HDD manufacturers test software & see if anything shows up.

AlanJB:
Matthias515566,

Which version (exactly) of Excel 2016 are you running?  Before build 16.0.6366.2062, Excel had a memory leak.

Just a thought...

Alan

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