1 2 3 4 7 8 9 p and backspace not working

There are many reports of keyboard problems with Asus laptops after upgrade to Windows 10. Below are some procedures that might help :

1. Bad keyboard driver
   It is possible that Windows 10 has kept your old keyboard driver. To force Windows to use its newest driver : Start the Device Manager, open Keyboards, locate and right-click your device and choose Uninstall, then finally reboot using the mouse. (Seems that you have done this one.)
   Some users also report a conflict with the Synaptics driver, so if you have a Synaptics touchpad, you could also try to uninstall that driver.

2. Missing driver
   There are several possibilities here. The first is to install the Asus drivers from Asus Support. Be very careful, especially with the BIOS update.
   The second is to use a driver-update product and see if it finds a new keyboard driver (do not install new drivers for devices that work). A couple of such utilities are Driver Easy and Driver Talent (although personally I avoid such products).

3. Verify your keyboard language
   Some users report having their keyboard language changed to another incompatible variant. Verify it in Control Panel / Language.

4. Turn Off Filter Keys
   Click Start / Settings / Ease of access, then Keyboard in the left pane. Turn off Filter Keys in the right pane and reboot.

5. Use the Windows + Space shortcut
   Some Asus users report that hitting this magical key-combination fixes non-functional keys. Sounds weird but is worth trying.
   Other users report similarly for the combination of Shift and the key that has a lock icon with fn written inside.

6. Workarounds
   If nothing works, you could try as workaround using a USB external keyboard, or even doing a clean install of Windows 10 (download first all Asus drivers from my above link and take an image backup of the disk with a product such as AOMEI Backupper Standard Freeware and create its restore boot CD or USB).