How to fix Outlook 2010 constantly synchronizing folders

In Outlook
1) Navigate to File >> Options >> Advanced >> scroll down to the send/receive heading >> click on the send/receive button on the right
2) On the right hand side of the send/receive groups window that opens click on the Edit button
3) Un-check the “Get folder unread count for subscribed folders”
4) under Received mail items, check the option “User the custom behavior defined below”
5) In the window below that displays your Gmail folders just select inbox and leave the others unchecked

6) click ok and then exit out of options

7) check task manager to make sure all instances of Outlook are closed

8) restart outlook and perform a send/receive to test if it is now working

 

http://social.technet.microsoft.com/Forums/office/en-US/6dca06f9-3c93-4b18-be1c-accd9f6be71d/fix-for-outlook-2010-hangs-on-synchronize-folders-when-send-receive

 

How to recover deleted emails from a pst file

Recovery process

The recovery process requires a Hex Editor. For the screenshots below, I’ve used HxD which is free and comes in many languages. There is also a portable version of HxD which doesn’t require any local installation. There are many other Hex Editors to choose from as well.

  1. Locate the *.pst file and create a copy of it to work with (never mess around with original files!)
  2. Open the *.pst file in the hexadecimal editor of your choice.
  3. In the column on the right side overwrite character position 7 through 13 with spaces. In the hexadecimal numbering system, this corresponds to 13 positions and not 6.
    When done correctly, the hexadecimal column (left column) block 7 through 13 will then display 20 (hexadecimal value for a space).

    Tip!
    If you are using HxD, then you can also select block 7 through 13 in the left column and choose;
    Edit-> Fill Selection…-> button OK
    This will fill the blocks with 00, which will work just as well.

    pst-file before editing in HxD (click on image to enlarge) pst-file after editing in HxD (click on image to enlarge)
    Before and after examples of editing position 7 through 13 of the pst-file in HxD.
    (click on images to enlarge)
  4. Save the *.pst file and close the Hex Editor.
  5. As you have now corrupted your pst file, you’ll need to run scanpst.exe to repair it.
  6. When scanpst.exe has repaired your pst file, open it in Outlook and look in the Deleted Items folder or in the original folder to locate your recovered items.

http://www.howto-outlook.com/howto/restoredeleteditemsfromanoutlookpst.htm

How to fix winmail.dat attachments in outlook 2010

How to fix winmail.dat attachments in outlook 2010 when sending emails to other email applications.
http://support.microsoft.com/kb/958012Add the DisableTNEF registry entry. To do this, follow these steps:

  1. Exit Outlook 2007.
  2. Start Registry Editor.
    • In Windows Vista, click Start, type regedit in the Start Search box, and then press ENTER.

      If you are prompted for an administrator password or for confirmation, type the password, or provide confirmation.

    • In Windows XP, click Start, click Run, type regedit, and then click OK.
  3. Locate and then select the following registry subkeys:
    HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Preferences
  4. On the Edit menu, point to New, and then click DWORD Value.
  5. Type DisableTNEF, and then press ENTER.
  6. Right-click DisableTNEF, and then click Modify.
  7. In the Value data box, type 1, and then click OK.
  8. Exit Registry Editor.
  9. Restart the computer.