General Computer Questions

What are the different types to install of windows xp

how to transfer data between computers?

When I rename photos I get the message – ‘if you change a file extension, the file may become unusable’. Then the photo has to be accessed by right hand click and opened. I need to view the pic at all times. Please help.

I HAVE HAD AS MUCH AS 3 VIDEO MAKERS ,QUICK TIME FREE, REAL PLAYER FREE, AND WINZIP, AND WINDOWS 12 MDIA PLAYER, DO I NEED ALL THESE PLAYERS. SOME SITES WONT PLAY A SONG . I HAVE VISTA HOME BASIC SEV PK 2 IE9