Hi, A tweak that is not in the master tweaks list is this one... -- disable windows image and fax viewer - the built in viewer is awful and irfanview is far better [HKEY_CLASSES_ROOT\CLSID\{e84fda7c-1d6a-45f6-b725-cb260c236066}\shellex] delete the MayChangeDefaultMenu key [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{e84fda7c-1d6a-45f6-b725-cb260c236066}\shellex] and delete the subkey: MayChangeDefaultMenu Images will now open in your default viewer by double-clicking. You can still right-click and select PREVIEW if you want to open it in Image Preview. If you want to get rid of the PREVIEW menu option entirely, you can go to HKEY_LOCAL_MACHINESOFTWAREClassesCLSID{e84fda7c-1d6a-45f6-b725-cb260c236066}InProcServer3 and for the (Default) Value, delete the data so it is empty, "". Reboot. No more "Preview" option on right-click.