if you have issues with the CopyToClipboard add-in, you need to follow this step: Close Outlook Un-Install CopyToClipboard (Control Panel / Programs and Features) Open regedit.exe Go to HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Resiliency (replace 15.0 with your actual Outlook version: 15.0 means Outlook 2013, 14.0 means Outlook 2010) and remove the REG_BINARY keys found in DisabledItems and CrashingAddinList folders. … Continue reading Issues with CopyToClipboard Outlook Add-in