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Issue - When you click a folder while you are using Outlook, one of the following error messages may be displayed:

Error (1) - There is not enough free memory to run this program. Quit one or more programs, and then try again.

Error (2) - Unable to display the folder. There is not enough free memory to run this program. Quit one or more programs, and then try again.

Note - You may experience this issue more frequently if you also use Business Contact Manager for Outlook (BCM).

Steps to Fix-

  1. Exit Outlook.
  2. Click Start, click Run, type regedit, and then click OK.
  3. Locate and then click to select the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Messaging Subsystem

  1. On the Edit menu, point to New, and then click DWORD Value.

  1. Type SharedMemMaxSize, and then press Enter.
  2. Right-click SharedMemMaxSize, and then click Modify.
  3. In the Value data box, type 300000. Use the default Base of Hexadecimal.
  4. Click OK.
  5. Locate and then click to select the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Messaging Subsystem\Applications\Outlook

Note- You may have to create the Applications and Outlook subkeys under Windows Messaging Subsystem if they do not exist.

  1. On the Edit menu, point to New, and then click DWORD Value.

  1. Type SharedMemMaxSize, and then press Enter.
  2. In the Value data box, type 300000. Use the default Base of Hexadecimal.
  3. Click OK.
  4. On the File menu, click Exit to exit Registry Editor.
  5. Now log off or reboot your system and check it should be fine.

Note - If above settings the two registry values that were mentioned earlier to 300000 does not resolve the issue, you can increase the size of these values up to 800000. :)

Keywords: Memory Error, outlook issue