Before You Begin:

IMPORTANT! “Write-Behind Caching ”, a feature in Microsoft Windows will cause damage to your data file if it is enabled when you use LabNet. Before using LabNet, be sure that you complete these steps on ALL computers on the network.

Before you can disable write-behind caching

Microsoft has confirmed write caching settings for hard disk will not persist after you restart your computer in the following Microsoft Products:

Microsoft Windows 2000, Professional
Microsoft Windows 2000, Server
Microsoft Windows 2000, Advanced Server

The following link describes the symptoms, cause, resolution, etc.

• http://support.microsoft.com/default.aspx?scid=kb;en-us;Q290757

To disable write behind caching you MUST first install Microsoft's Service Pack 3. Please follow these directions:

To find out if Service Pack 3 is installed on each of your Windows 2000 computers:

1. On your desktop, right-click the My Computer icon, and then click Properties.
2. Click the General tab, and then click Device Manager .
3. In the "System" section you will read 'Microsoft Windows 2000, 5.00.XXXX'. If Service Pack 3 is installed, the next line will display 'Service Pack 3'; if it is not displayed, you must obtain and install Service Pack 3.

Download and install Service Pack 3, if required:

• http://www.microsoft.com/windows2000/downloads/servicepacks/sp3/default.asp

Disable "write-behind caching"
“Write-Behind Caching ”, a feature in Microsoft Windows will cause damage to your data file if it is enabled when you use LabNet. Before using LabNet, be sure that “Write-Behind Caching” is disabled on ALL computers on the network.

To disable “Write-Behind Caching” For Windows 2000 Professional, Windows 2000 Server, and Windows 2000 Advanced Server, follow these steps:

• Double click on the "My Computer" icon on the desktop. The following menu (displayed on the right) should appear.
  
  
  
• When the menu appears, right-click on your local hard drive, (Usually listed as "C:") and select "Properties".
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
• Click on the "Hardware" tab to bring the Hardware window forward.
  
  
• Highlight your Hard Drive and click on the "Properties" button.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
• Click the "Disk Properties" tab to bring the Disk Properties options forward.
  
  
• Disable write-behind caching by removing the check mark in the box next to the statement "Write-cache enabled" and click "OK".
  
  
• Be sure to disable write-behind caching on all drives that LabNet uses.
  
  
• Repeat these steps for ALL Windows 2000 machines on your network.