Try getting KernelEx, but whar are the specs in your computer? laptop or desktop?
Yes, it should work fine under Win7.
It should if it is running Windows XP or newer. Check out the related link for computer requirements.
Have you tried to download mods? If so, some mods aren't really mods, they're scams and they hack your computer so minecraft and other programs on your computer won't work. If you usually don't shut off your computer every day, then shut it off and try playing Minecraft in-browser again.
Minecraft is made to work with ANY computer that uses java.
Minecraft can be played on Windows PC, Apple Mac, Xperia and Xbox360.
.bat files are Windows, so no.
yes it does
Windows is the operating system on a Microsoft computer or an Apple computer running windows drivers. Without windows your computer would not work.
They announced it on Christmas (2012), so yes.
Try uninstalling it and einstalling it. That may make it work
By pc I'm assuming you mean Windows. Minecraft works on definitively works on all versions of Windows including and after XP. Minecraft also works on Mac and Linux. Minecraft may work on other operating systems as long as they support Java, OpenGL, and has the capability of handling graphics.
yes a printer will work on all versions of windows and macs