Those links was connected to the old AMD Forum format which was changed late last year.
Here is the same link that is working in the new AMD Format:
Second link does work for me: https://community.amd.com/t5/drivers-software/clean-install-amd-graphics-drivers/td-p/296676
Note: Even though the page is Out-Dated (2015) most of the information is still valid.
This link concerns using AMD Cleanup Tool:
EDIT: @WarSailor if none of the above helps fix your issue I suggest you open a new thread concerning your laptop.