Your drivers will not work correctly until you have updated your computer through Windows Update. Not just the 'Critical/Important' updates but the relevant 'optional/recommended'...which will include the required .netframeworks and C++ upgrades. This must be done before trying to install any AMD driver.
Your laptop is equipped with switchable graphics. In order to update the AMD driver, the Intel graphics must be the current version. Go to this Intel link, and use the Intel Driver Update Utility to find the latest graphics driver for your laptop. Download and save it to your desktop.
Download these AMD drivers to your desktop.
Now delete the Intel drivers from your computer using 'uninstall a program' in the computer control panel. Uninstall the AMD drivers from your computer using the 'uninstall a program' in the computer control panel.
Computers with Intel processors select 'express' uninstall all AMD software including the install manager.
Computers with AMD processors custom uninstall the AMD graphics driver and Catalyst Control Panel only.
Note: All anti-malware/anti-virus/anti-anything should be disabled during driver installation.
Now install the Intel drivers first....reboot. And lastly the AMD drivers....reboot.
NOTICE: If you do not want raptr/gaming evolved installed with your new drivers, select 'custom install' and uncheck the box for "gaming Evolved".
If you are having issues with the normal installation of the Mobility drivers, use the clean install method , making sure you install the latest Intel drivers.
I tried everything you mentioned above before posting here. But nothing seems to work,
IF you have the required updates installed, your computer power plan set to 'Performance' (not 'balanced'), the latest Intel drivers installed, then you can try a clean install of the AMD drivers.
I tried your method kingfish, but still the problem persists.
I think I know how to solve your problem.
In crimson click on "preferences" and then click on additional settings.
When additional settings pops up, click on "switchable graphics application"
Then make sure that what you want to run on your 7730m is set to run on the "high performance" mode.
This should theoretically solve your problem.