http://forum.alcohol-soft.com/index.php?/topic/31471-uninstalling-full-of-the-alcohol-120-v2012033-retail/#entry148566

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To Manualy uninstall Alcohol

1.Please download and run the following tool:
http://forum.alcohol-soft.com/files/sptdremov.exe
After removing SPTD from your system and restarting Windows as requested by
the tool (you may need to reboot twice in some cases, the tool will tell
you)

2.
Delete registry key for 32bit HKEY_LOCAL_MACHINE\SOFTWARE\Alcohol Soft

For x64 HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Alcohol Soft

3.
Using the Alcohol or Device Manager of Windows to remove the added Virtual 
Drives

4.
Delete the installed folder of Alcohol under Programs.