pc not starting

  1. Windows 10 PC not starting as before

    On start up is interrupted asking to press either f1 to get in Bios to sort it out & set date/time or f2 for defaults. Whichever I choose it still does same on every star up. Can you help? Home build, Asus P5K Premium wifi Intel, Intel Core 2 Quad Pro Q6600 95W 2.4GHz, 2x2GB, 240-pin DIMM...