Canon EOS 7D is a high-end DSLR camera features an all-new 18.0 Megapixel APS-C size CMOS sensor and Dual DIGIC 4 Image Processors, Canon's X0D series was, for many years, essentially the default choice for keen enthusiasts, professionals and aspiring-professionals.
Tripods are required when photographing fireworks because of camera shake. Fireworks photography uses long shutter speeds 1+ seconds to capture the light trails of the explosions. Even the best image stabilization technology will have problems matching your hand movements for that long.
If you have it, you can use the disk for your operating system to format your hard drive. Formatting will erase EVERYTHING from you drive! If you have not backed up recently you might have a problem. When backing up your files you may be backing up the virus as well and it would re-infest your...
TVersity Media Player is a littel quirky during boot but works well and handles many formats. It even handles internet streams video and radio. This is the one I settled for. Especially because it does not cost me a dime and works 97% of my files, be it photo, video or music.