- Start Registry Editor.
- Locate and then click the following subkey:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftExchangeClientOptions
- On the Edit menu, click Add Value, and then add the following registry value:
Value name: DumpsterAlwaysOn
Data type: DWORD
Value data: 1 - Close Registry Editor.
- Open Outlook – Tools – Recover Deleted Items