- Windows XP: Choose Start > Run, type msconfig in the Open text box, and press Enter.
- Windows Vista: Click Start, type msconfig in the Start Search text box, and press Enter.
When you try to save or export files from Adobe Illustrator CS3 on Windows, the application returns the error "An unknown error has occurred."
If Microsoft Zune software is installed on your computer, then you may have an older version of the Zune software which conflicts with Illustrator CS3.
Download the latest version of the Zune software from www.zune.net or choose Check For Updates in the Zune software to start the automatic updater .
If the error continues to occur after you have installed the latest version of the Zune software, then remove the Zune software and restart your computer.
To remove Zune software, use Add Or Remove Programs (Windows XP) or Programs And Features (Windows Vista) in the Control Panel.
Disclaimer: Adobe doesn't support third-party software and provides these procedures as a courtesy only. For further assistance with updating or removing Zune software, contact Microsoft.
If the error continues to occur after you have removed Zune software from your computer, then reinstall the Zune software and proceed to Solution 2.
Startup items (which start automatically with Windows) and services (specialized programs that perform functions to support other programs) may conflict with Illustrator and cause an "unknown error" message. To determine whether a startup item or service is causing the error, disable all startup items and non-essential services before you start Illustrator.
To disable startup items and non-essential services, follow the instructions in one of these TechNotes:
When you have restarted your computer with startup items and non-essential services disabled, open Illustrator and try to reproduce the error.
If the error continues to occur, then startup items and services are not the cause, and you can re-enable startup items and services.
To re-enable startup items and services:
If the error no longer occurs after you have disabled startup items and services, then one of the startup items or services is the cause.
To identify the specific startup item or service that is causing the error:
An "unknown error" message may appear because one of the Illustrator preferences files has become damaged. Follow the instructions below to re-create the preferences files.
Warning: When you re-create the preferences files, you will lose any unsaved actions that you created. To save actions that you created, choose Save Actions from the Actions palette menu in Illustrator before you follow the instructions below. To load your custom actions in Illustrator after you have re-created the preferences folder, choose Load Actions from the Actions palette menu.
Note: This solution requires you to locate hidden files and hidden folders. By default, Windows Explorer doesn't show hidden files or hidden folders. To make these items visible, see "Show hidden files and folders (Windows XP, Vista)" (TechNote kb402324).
To re-create the Illustrator preferences files:
If the error continue to occur, then a damaged preferences file is not the cause. To restore your custom settings, delete the new preferences folder and restore the original name of the previous preferences folder.
Damaged or incorrect permissions in your user account may be causing the "unknown error" message. Create a new local administrator account, log on to it, and then run Illustrator while logged on to the new account.
To create a new local administrator account: