How do i install software to upload photos from my

One way to transfer photos from your Olympus c-4000 camera to your computer without installing any software is to remove the memory card from the camera and plug it into a card reader on your computer. The pictures on your camera will be shown in windows explorer as a removable storage device.

If you don't have a card reader connected or built-in to your computer for your memory card type, then try connecting your camera with the usb cable, and your pictures will show up in windows explorer as a removable storage device.

For more step-by-step instructions, your user's manual is available here:
Olympus C-4000 User's Manual.