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How can I open more than fifteen files on Windows 7 at once? I can do fifteen by selecting them and pressing enter, but if I try to select more, enter stops doing anything.

All the files are the same type—pictures.

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AFAIK, you can't. –  Mehrdad Jun 23 '11 at 3:02
    
@KContreau: Is it different for different kinds of files? –  Mehrdad Jun 23 '11 at 3:03
    
all the files are the same type -pictures –  chabad Jun 23 '11 at 3:06
    
@Mehrdad Yes, if the files are all opened by the same program, they can be opened by selecting them all and hitting enter, or right-clicking and hitting open. If they are not opened using the same program, you can't, and the open menu item won't be there when right-clicking. –  KCotreau Jun 23 '11 at 3:07
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@chabad Ahh, I understand the problem now. There is a limit. I will see if I can find a regisrty entry that breaks that limit. I was able to put 16 .jpg files in a folder, and if I click 15, the open menu is there, but click all 16, and no menu item. –  KCotreau Jun 23 '11 at 3:13
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1 Answer

up vote 14 down vote accepted

Open regedit and navigate to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer

Add this case-sensitive DWORD (32-bit) key:

MultipleInvokePromptMinimum

Set the value to

16

P.S. 16 is not a hard number, but actually indicates "unlimited", so putting in 17 probably will not work.

For screenshots see the source: Opening, editing, and printing multiple files by right clicking limit

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+1 you just pwned me. :) Nice answer, this is actually very useful! Hope you get lots of upvotes! –  Mehrdad Jun 23 '11 at 3:28
    
can i put in whatever number instead of 16? –  chabad Jun 23 '11 at 3:40
    
@chabad Actually, if you read the last line, I just edited my answer a few minutes ago to address that exact question. –  KCotreau Jun 23 '11 at 3:41
    
Based on some of the (now deleted) non-answers below, it's worth pointing out that you apparently need to type the 16 in hexidecimal mode, not in binary mode. There should be a radio button to select hex/dec when you enter the value. –  nhinkle Jun 15 '13 at 3:20
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