Resolution
1. Launch Windows Guest OS.2. Disable antivirus in Windows.
3. Open Control Panel > Programs and Components (or Control Panel > Add/Remove programs if you are using Windows XP) in Windows and remove Parallels Tools if present.
4. Reboot your Windows guest OS.5. Install Parallels Tools using "Install Parallels Tools" menu item in the Action menu (Parallels Desktop versions 2 and 3), or Virtual Machine menu (Parallels Desktop 4 or higher or Parallels Workstation 2.2 and Extreme).
6. Reboot Windows one more time.7. Enable your the antivirus back.
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