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Step 6: Close the Registry Editor window, and restart Microsoft Outlook.Īfter changing the attachment size limitation in the Registry Editor window, attachments will be inserted successfully only if their sizes are less than attachment size limitation. Note: If you do not want to limit the attachment size in Outlook, just enter the 0 in the Value data box. See screen shot below:įor example, you want to change the attachment size limitation to 100MB, enter the 102400 in the Value data box. Step 5: Double click the new DWORD to open the Edit DWORD (32-bit) Value dialog box, check the Decimal option, enter the attachment size limitation in the Value data box, and click the OK button. Step 4: Click the Edit > New > DWORD (32-bit) Value, and name the new DWORD as MaximumAttachmentSize. Outlook 2007: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Preferences Outlook 2010: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Preferences Outlook 2013:HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Preferences Outlook 2016:HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Preferences Open the Preferences folder with following paths: Step 3: Now the Registry Editor window opens. Step 2: In the coming User Account Control dialog box, click the Yes button.
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Step 1: Press the Win + R to open the Run dialog box, enter the regedit in the Open box, and click the OK button.
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To change the attachment size limitation in Microsoft Outlook, you have to modify the parameter of MaximumAttachmentSize in the Registry Editor. In this article, I will guide you to change the attachment size limitation in Microsoft Outlook.Ĭhange attachment limited size with Registry Editor (6 steps)Ĭhange attachemnt limited size with Kutools for Outlook (3 steps) This error happens due to exceeding the size limitation of attachments in Outlook. Sometimes, I can’t insert a big attachment successfully in Outlook, but get a warning dialog box saying the attachment size exceeds the allowable limit.
SET DEFAULT PROGRAM TO OPEN ATTACHMENTS IN OUTLOOK HOW TO
How to change the attachment size limitation in Outlook?
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