why does my character mov forward on its own with no input from keyboard.

@OLDMozza666 Gigabyte MB ???
get all the latest drivers https://www.gigabyte.com/nl/Motherboard/Z390-AORUS-PRO-rev-10/support#support-dl-driver

Then some bios updates could help ya also.
Still im confused with the bios version thats displayed in DXDIAG ??
What version bios do ya run ?
If ya gonna flash bios, use all flashes , dont use only latest one !
example if ya got F7 version , then you start to flash with F8 and up to the latest one !!!
Dont forget after flash bios, RESET CMOS first , then after reset cmos you get back in bios and LOAD OPTIMIZED DEFAULTS ! then ya flash the next upgrade and repeat those steps again till ya got them all flashed.

This version F12l makes it more interesting , then you could enable resizable bar (no more package of 256mb) , more improvement for / at your gpu aka system !!!

after flashing all bios versions, then you check for latest WINDOWS UPDATES FIRST !
Then check again for latest system drivers , read below *SYSTEM DRIVERS AND CHIPSET UPDATE

But before ya use DRIVER EASY tool, ya gonna check windows for any errors;
SFC - Windows Health Check

Press Windows key + 'R' ,typ CMD
Press and hold down CTRL + SHIFT and press ENTER.
When User Account Control shows up, click Yes.
Use the following command lines, pressing Enter after each
(make sure you wait till each of the commands is executed properly):

sfc /scannow
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
Reboot system , and use only SFC /SCANNOW to check if there is still any error, still error , reboot and again sfc /scannow.
No error ? now update drivers (read below)

*SYSTEM DRIVERS AND CHIPSET UPDATE

Check the Youtube movie how to install , download and update ALL drivers with DRIVER EASY tool.
https://youtu.be/6UpzenfVOAA
Open the web browser and enter url: https:\\www.drivereasy.com
Click at Driver Update Tool in the upper bar and select Download Free Version.
Click at the green button with the text DOWNLOAD DRIVER EASY NOW.
When tool is downloaded select the file and run.
Install Driver Easy Tool.

Some drivers updates need to reboot your system, reboot system when needed,
continue using Driver Easy untill 'ALL' drivers are updated.
This free version allows only 1 download and 1 update at once

All drivers done ? reboot and test game ! Update us please !