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How to Repair Wi Fi Connection After Windows Service Pack 2 Upgrade

When Service Pack 2 of Windows XP was launched, Microsoft sent through a hotfix (Q815485) that kills Wireless adapters from working with the new system files. You can resolve this problem in one of three ways, depending on whether you use...

Method 1 of 3:

Resolution If You Don't Use WPA

  1. Picture 1 of How to Repair Wi Fi Connection After Windows Service Pack 2 Upgrade
    Remove the hotfix (if it is already installed, using the following steps:
    1. Click Start > Settings > Control Panel > Add/Remove Programs.
    2. Click Windows XP Hotfix (SP2) Q815485.
    3. Click Remove. You might see a message that programs won't work if the update is removed. Ignore it, and click Yes to remove the update.
    4. Restart your computer.
    5. Rerun the Smart Display Setup Wizard.
Method 2 of 3:

Resolution If You use WPA and Some Network Devices do not Have Their Own WPA Configuration Utility

  1. Picture 2 of How to Repair Wi Fi Connection After Windows Service Pack 2 Upgrade
    Install the hotfix and use the Windows WPA configuration utility.
Method 3 of 3:

Resolution If You Use WPA and All Your Network Devices have Their Own Configuration Utility

  1. Picture 3 of How to Repair Wi Fi Connection After Windows Service Pack 2 Upgrade
    Install the hotfix, but don't use the Windows WPA configuration utility. Use the network devices' own configuration utility, instead.

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