Try first without uninstalling. Just download the correct installer, AIS TRIAL latest stable version (as oppose to downloading the limited Free edition). Then run it over your current installation.
Once the installer finishes, accept any system changes if necessary (Windows Defender, or equivalent tool, if present, might ask you to allow the changes for example; but don't worry if it doesn't). Once the HDD led stops blinking "like crazy", click to allow reboot (the installer requests for you to reboot).
Please report back.