I can't watch video, music
I forgot password, beeping sound when booting
I can't scroll down to choose windows on the menu, restricted to only the first option which is kubuntu
unable to format need help. konqourer browser can't work help
Forgot password and cannot reset
I am assuming that you have both the windows and Linux installed on the system and it is not letting you choose the windows after the boot. So here is what you can do.
-There is a small RESET button on the BIOS which clears the CMOS memory. This memory contains all the changes you have made since the first time you started the PC. It will reset your BIOS to the factory defaults. You can then try reinstalling the windows by setting the BOOT order in the BIOS menu.
-If you can't find the RESET CMOS button. Then there is another way. You have seen a large Cell that is placed on the motherboard. Remove that cell from its place, rub it against a small cloth piece and put it back into motherboard. Do all of these things after plugging off the power cord to the power supply.
-After doing this you will be able to go in the BIOS and then BOOT from CD-ROM and install windows. There you will be allowed to format the hard disk.