Cannot download all of pictures onto pc.

Should be available from the Panasonic site

Yes. There's a "Copy" option in the playback menu. It can copy all pictures from internal memory to a card, or individual pictures from a card to internal memory.

If your pictures are safely downloaded to your computer, put the card back into the camera, go into the menu and find "format"...follow the on-screen instructions.

Page 76 of the user manual explains how to print a date user manual download from here http://www2.panasonic.com/consumer-electronics/support/Cameras-Camcorders/Digital-Cameras/Lumix-Digital-Cameras/model.DMC-LZ7K

Try NOT connecting your camera to your computer.

The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.

Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program.

The camera is designed to store images and videos onto a memory card, not to stream them live to a computer. It cannot be used as a webcam.

try using a card reader for downloading the photos. about computer stop responding, might be an issue with windows. try reinstall.

The camera doesn´t need a driver for use as a external drive, it permits download photos and videos, also can be use as a pen drive
If you use the camera as a usb webcam you can download the driver directly from panasonic

Hi There, Did you try going into the menu and turning the mic option on?
Thanks, mr cicmo

Go to the menu and Select 'Format.' This will erase all the pictures from the memory card or internal memory so be careful.