First of all get all the drivers for your tablet from the link above and make them available to your tablet by putting them on a USB stick or temporarily copying them to the C:\ drive.
Barfydee wrote:I have no sound at all and the speakers aren't recognised as the default speaker. I have updated all drivers and also uninstalled and reinstalled. The Intel SST Audio Device (WDM) and Realtek I2S Audio Codec seem to be have a problem with windows 10
Go to the device manager and find the sound device. Update the driver but allow the device manager to search your tablet for the drivers. Point the search at the root of the driver folder you created above and make sure you have selected the option to search subfolders. Device Manager should find the drivers and load them. I had exactly the same problem with my sound.
Barfydee wrote:The battery icon at the bottom remains empty all the time and doesn't recognise battery life
Again, go to device manager. You have likely got some unknown devices. Update the drivers for each of the unknown devices using the search method described above. Again I had this problem.
Hope this helps.