Disconnect all non-essential Razer devices from the PC.
Click "Select All" under SELECT THE SOFTWARE TO UNINSTALL, then click "UNINSTALL".
Click "Yes" once the Windows User Account Control prompt opens.
Click on "Razer Synapse", select "Uninstall", then click on "Uninstall" again.
Type: "Razer". A list of Razer programs installed in Windows will appear and can vary by PC.
Click "Search sort, and filter by drive".
Search for "Apps & features" in the Windows search box then click on it.
Right-click on the Synapse 3 icon and select "Exit All Apps".
Note: If you already have a Razer ID and have your profile associated with Synapse, proceed to step 3.
How to export and import profiles in Synapse 3.
See the answers below for detailed instructions. See the answer below for detailed instructions. Note: Collect and save Synapse logs prior to performing a clean re-install, should the issue needs further investigation.