You can check the compatibility of PHOTOfunSTUDIO with Windows 8 on Panasonic support website. All versions above PHOTOfunSTUDIO 2.1 are compatible with Windows 8, with the mention that for version bellow PHOTOfunSTUDIO 4.0 HD you need to download an updated installer. Go to Please click here button from the Remarks column and install the corresponding update.