Hey
@sirathol, welcome to CF.
To clear the history in Chrome, the easiest way is to use the keyboard shortcut
Ctrl + Shift + Del.
Make sure you tick all the boxes and change the time frame to 'All time'
Clearing the history is only half the battle.
To stop Chrome presenting suggestions when you start typing in the address bar you need to turn it off - it's a pretty hidden option and not in an obvious place - it's taken me a good 10 minutes to find where this is for you.
Try copying and pasting this into your address bar to take you to the right page straight away:
chrome://settings/syncSetup
If that doesn't work, follow this:
1) 3 dots in top right corner
2) Settings
3) 'You and Google'
4) Sync and Google Services
5) Under Other Google services, turn OFF the last 2 options (Improve search suggestions and Show Google Drive Suggestions)
6) Finally, restart Chrome and it should hopefully now be behaving as you desire.