Let’s say you have 10 PDF documents to review. You can highlight them all, right-click on them and chose Open from the context menu to open all of these files in one shot or Print to print them all to the default printer. Quite convenient, doesn’t it?
But there is a limit Microsoft set in Windows to prevent you from opening hundreds of files all at once, which most likely will crash your computer if you do. The magic number is 15. If you have more than 15 files selected, you won’t see the Open and Print options in the context menu like you do in the screenshot above. Instead, you will see a compact version of context menu like below.
So, what if I’ve got a fast computer with tons of RAM, totally capable of dealing with 30 or even 50 documents at the same time? Is there any way to increase that number so I can take advantage of the computing power I have to get more work done?
Here comes a registry hack to rescue, thanks to Winaero.
Open Registry Editor, and go to the following Registry Key.
And create a new DWORD (32-bit) Value called MultipleInvokePromptMinimum and set a value in decimal to the max number of files you would like to open at once. I put 30 in this case, see the screenshot below.
The change takes place right away without a logoff or restart. Now, I selected 19 documents and was still able to use Open and Print option from the context menu.
Now that you know the trick, you may still want to slowly increase the number to see if your computer is able to handle the workload.
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Last updated: 09/22/2016