I've been wondering what others have found as the best method to disable Vista, and Vista 64, driver signing. There seems about three methods to disable driver signing. 1. A .bat command file. I've tried a .bat file with the following various commands: bcdedit -set loadoptions \”DDISABLE_INTEGRITY_CHECK” bcdedit -set loadoptions \DDISABLE_INTEGRITY_CHECKS” bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS Bcdedit.exe /set nointegritychecks ON With some success, but it needs to run each time, and has about, at best, a 50% success rate. 2. Pressing F8 upon boot up, each time, and selecting to disable driver signing for that boot session. 3. A seeming permanent, and easy OS change, which I am currently experimenting with: Use gpedit.msc and navigate to: User Configuration -> Administrative Templates -> System -> Driver Installation and enable the "Code signing for drivers" and then choose "Ignore". So far this one seems to work 100%, though I have had a few system try icons become invisible, even though the apps are still running, ATITool being one of them, but it seems to work great, and the Tool does autoload and run. I can bring the tool up by clicking on its Icon on the desktop, though shrinking to the SystemTray is rarely successful, as it disappears on me. Anyone else find a consistent, 'best' method to disable driver signing?