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When I use 2 monitors, one on VGA and one on hdmi, Win 7 will always assign the hdmi monitor as 1 and the VGA monitor as 2. How can I manually assign these?

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this is so silly there is seemingly no way to change this. I have the same problem with a TV I have connected on HDMI. Since it's decided that the TV is screen #1, whenever I connect it all the windows pop over to that screen, even though I usually only want it for VLC. Especially annoying bc the 'do you want to keep these settings?' countdown also pops over and is invisible at my computer. – Damon Apr 8 '12 at 4:13
The issue is this: Windows likes to randomly throw dialog boxes etc on number 1 regardless of whether 3 or 2 is set as primary. Even if screen #1 is turned off at the time, windows will act like it is powered on and not regularly but often enough to be obnoxious, have stuff show up over there. Furthermore (and this hints its a gpu card hardware issue) if the display isn't #1 the bios and other startup screens are sometimes displayed ONLY on #1. – user177362 Dec 1 '12 at 21:55

I have read this software allows you to change that.

Depending on the Video driver you have whether you can change it in Video properties.

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thank you for the links I will play with the nvidia control panel and see what I find... – flawedoptics Jan 16 '11 at 23:14
For NVIDIA card in its control panel/display/multimonitor configuration you can arrange the monitor position as you wish (1 to the left/right of 2). But you cannot change the numbers itself: DVI will remain 1 and VGA will remain 2. – Andrey Regentov Nov 26 '12 at 8:12

Does the actual number that's assigned matter, or do you just want to make your VGA monitor the primary monitor (the one that shows the taskbar)?

If all you want to do is change the primary monitor, right-click on your desktop, select 'Screen Resolution', click on your VGA monitor on the diagram (monitor number 2 in your case) and then click the checkbox 'Make this my main display'.

Some programs are affected, such as PowerPoint, when we want the complete (final) image on the projector screen, it shows up on our desk monitor instead and shows the work area being projected along with the images.

If this is not your issue, then I'm really interested why the actual order of the monitors matters to you.

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Many applications open on display #1 regardless of the designated primary display. – Noah Yetter Dec 14 '12 at 6:51
Some screen sharing software (Adobe Connect) only allow sharing screens 1 or 2. – ericslaw Feb 2 '15 at 18:13

In Windows 7, if you right click on your desktop, you can go to personalize and appearance and personalization. From there, you can go to display and screen resolution. In this window you can assign the monitor numbers.

You can find more info here:

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Thank you, I am familiar with these settings but I cannot find on the link where it says how to assign which monitor is 1 and which is 2. I have no problem switching between monitors and changing resolutions but in all my testing windows will always assign my hdmi monitor as 1 and my vga as 2 if both are hooked up. I cannot, for the life of me, figure out how to manually assign them a number. – flawedoptics Jan 16 '11 at 23:10

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protected by Community Aug 22 '13 at 6:45

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