Upgrade linksyswag200-g driver - Linksys WAG200G Router

Remove Realtek wireless network adapter and upgrade to an Intel adapter. Check you tube on how to do the upgrade its very easy. The card is right under the keyboard.

I'm assuming that you are upgrading XP to Win 7 just a guess. You have to download the upgrade advisor from Microsoft first it will set the upgrade in motion. Click Here to get the upgrade download. If you have computer experience with computer upgrading there are other ways to go about it however you will have to completely wipe the drive and set the disc in the drive and make sure it boots to DVD or CD ROM as the first boot. So if you are not good at this go with the advisor purchase a legal copy of Win 7 so that you have a legal serial.
Then you may have to hunt for a driver or two. Win 7 is usually great with upgrading drivers during the install make sure that you are online doing the upgrade. I hope this assists you. If you have the original disc for the lap top it has all of the drivers and software that came with your purchase. If you have issues with drivers just use the drivers discs that came with your computer to re-install them. Great question!
John

Go here http://www.microsoft.com/windows/windows-vista/get/upgrade-advisor.aspx and download the fre tool to check your computers compatability. Then use the microsoft update feature to download current updates

Check for the compatability of the Driver for the DVD player. Sometimes the Driver for HP Pavillion wouldnt work when operating system is changed or upgraded. Visit HP website to check if there is a DVD player Driver which you can download for Windows 7. Good Luck.

http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=6&PFid=6&Level=5&Conn=4&DownTypeID=3&GetDown=false

Select your model and download Vista driver for your printer here.

do u mean upgrade software or upgrade card.
upgrade software ....goto device manager locate hardware...update driver(you may find you already have the latest drivers and cannot upgrade,cos there isnt an upgrade)
upgrade card is to replace/change card requiring a little knolledge of disassembly.

This product can be used with Windows Vista.

• To use it with Windows Vista, you must install the driver software for Windows Vista.
  
• The Windows XP drivers for your product cannot be used under Windows Vista.
  
• Easy-WebPrint and PhotoRecord do not support Windows Vista.

Upgrading from Windows XP to Windows Vista :
Before upgrading your OS from Windows XP to Windows Vista, delete / uninstall all the Windows XP driver software first; then, upgrade the OS to Windows Vista and install Vista driver software.
If you have already upgraded your computer's OS to Windows Vista :
Delete / uninstall the Windows XP drivers before installing Vista drivers.

I hope it helps!!!