i found solution from all your answers and BY Tradesman the moderator
i found it that the cmos battery is empty and wrong date and time in bios
Solution
First step
*Replace old CMOS battery with new CMOS battery having identical number, size and voltage
(you may still get an error message saying cmos setting wrong,dont panic!)
Second step
*Enter bios and reset to default
(you may/may not see same phrase but there would be same option which resets your settings to default other than changings options and messing around bios, i would recommend reset to default)
Third step
*Edit date and time to current one
(this is the most crucial step,Dont forget to change date and time of bios,because replacing battery will cut the current updated time and reseting should also made it to an date which is incorrect,you need to correct it by the current date and time)
Fourth step
*Save and exit bios.
you can normally boot into windows , no more cmos error popping
(in worst case scenario ,they would show up again any hardware errors,bad hdd or ram or loose contact [only 0.01%])
Tada....problem solved goood luck guys who have same problem .PM me if you have doubt in doing any step
thanks for those beautifull and fast replies