Vista - Deleting Optional Microsoft Updates

Thanks in advance for the help. My other computer was working perfectly until I installed these 4 optional updates. I am running Vista Basic Home and now cannot connect to my Belkin wireless router and therefore have no internet.

1. Realtek Semiconductor Corp-Network-Realtek 8185 Extensible 802.11 b/g Wireless Device
2. Realtek Semiconductor Corp -Storage-Realtek USB 2.0 Card Reader
3. Update for windows Vista-English (KB937286)
4. Marvell-Network-Marvell Yukon 88e8038PCI-E Fast Eternet Controller

The wireless network connection to the the Belkin is listed under 'connect to a network' with a strong signal, and the computer I am typing on is connected so I know the router is working, but zi get the message that Windows cannot connect to belkin54g.

When I go to uninstall these updates, they are no listed that I installed them and therefore cannot remove them...

Help PLEASE! How do I remove these 4 optional updates?

Have you tried System Restore - How to to a time prior to these being installed?

Device manufacturer updates usually go directly into the system and cannot be seen in the "View installed updates" list. Here you will only find the KB's from MS. But the Update for windows Vista-English (KB937286) should be there.

Thanks! The system restore was successful. Great to know this forum is full of helpful, knowledgeable people for all of us newbs!