Monitor screen resolutions small windows7?

Monitor screen resolutions small windows7?

Added (1). lenovo z50 model
after format and installed graphic driver intel hd graphic family, screen resolution goes small, when i changed in setting its not match like i get before

You may not have to use "intel hd graphic family" graphic driver for Lenovo z50 to get the resolution you need.
There are at least 4 models. http://shop.lenovo.com/...eries/z50/
If you have the model with the Nvidia chip for video, load the driver for that. Search Lenovo support.