Troubleshoot:After i made the Disk Defragmenter at C i lost my wireless setting and files for my windows

After i made the Disk Defragmenter at C i lost my wireless setting and files for my windows

After i made the Disk Defragmenter at C i lost some info and files for my windows  then my wireless dont detect any wireless networks its lost all operation setting of my  wireless adapter (Atheros AR5005G Wireless Network Adapter) i need to get files
and setting of it cos its lost all  And i could not update my antivirus(Microsoft Security Essentials)  0x80240022

Anwsers to the Problem After i made the Disk Defragmenter at C i lost my wireless setting and files for my windows

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Hi jasem 8888,
Try these methods in the order listed:
Method 1: As a first step, update the driver for network adapter by visiting the manufacturer's website.
You may also follow this step to do the same:
a.
Right-click My Computer, click Manage, and then click
Device Manager.
b. Double-click the type of device you want to update or change.
c. Right-click the specific device driver you want to update or change.
d. Click Update Driver to open the Hardware Update Wizard.
Follow the wizard instructions.
For more information, see:
How to manage devices in Windows XP
 
Method 2: Follow the methods listed in this article and check if it helps you:
How to troubleshoot wireless network connections in Windows XP Service Pack 2
Note: The steps listed in this article are applicable to other service packs of version of Windows XP as well.
 
Method 3: For issues with Microsoft Security Essentials, see:
http://www.microsoft.com/en-us/security_essentials/Support/cf5220bd-3da8-4694-ac42-f5396ef5ff0b.aspx

Tweak IE Options

• Open Internet Explorer.
• Go to "Tools > Internet Options > Advanced Tab".
• Uncheck "Enable third-party browser extensions".
• Click "Apply".
  
• Reboot your computer.

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