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To open or access the Windows registry, we usually open the Run field, type regedit and press Enter. Do it twice and yet only one instance of the register will open. If, for some reason, you need to have multiple instances of the registry editor open in Windows, how would you do?
Open multiple registry instances
As I said, if you try to open more than one registry editor instance using’regedit’ several times, you will notice that nothing happens … ; that is, only one instance is open.
To open additional regedit instances, simply use the -m or /m switch!
That is, open the Run field, copy the regedit -m or regedit /m(16) field and press Enter. Do it twice and you will see two instances of the registry window open.
This can also work in other applications. I tried and was able to run two instances of Calculator on my Windows 8.1 with this trick. I started calc.exe and then calc.exe /m.
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