Log in to the system with an administrator account.
Disable startup items, and restart Windows:
Choose Start > Run.
Type msconfig in the Open text box, and then press Enter.
On the General tab, click Diagnostic Startup.
On the Services tab, select any services that your product requires.
Important: If you are troubleshooting issues related to any CS3 product, enable the FLEXnet Licensing Service. The FlexNET Licensing Service is required for all CS3 products and if it is not enabled, the product can't launch.
Click OK and choose Restart in the System Configuration dialog box.
Note: Upon restart, you are notified that the System Configuration Utility has changed the way that Windows starts up. Click OK, and when the System Configuration Utility appears, click Cancel.
If you want to troubleshoot video issues, continue with steps 3 -5:
Press the F8 key before Windows starts, when you see a message such as, "For Advanced Startup Options."
Select VGA Mode from the list of startup options.
In the Desktop dialog box, click OK to start Windows.
Restart in Normal mode
Choose Start > Run, type msconfig, and click OK.
Choose Normal Startup on the General tab, click OK, and restart the computer.