So you got Release Candidate 1 all downloaded and installed but what's that can't connect wireless to your router? What a bummer? I repair/build computers and have already installed Windows 7 RC1 nearly 50 times on various set-ups. Today I am going to go through a resolution for the Linksys WMP54g. After you have installed Windows 7 RC1 you will notice in the device manager that there is an "other" category now this will only show up if Windows 7 did not find proper drivers for your installed hardware. . If there is no "other" then you are OK! However if you are trying to install a Linksys WMP54g you will need several thing to get this one working correctly.
Step 1. Download Ralink Driver HERE. Once you have downloaded the file. Open and follow the onscreen instructions.
STEP 2. Now Go to device manager(Start->Right Click Computer-> then Left Click Device Manager) Under the "Other" drop down Right Click "Network Adapter" and choose "Update
Driver Software" then choose "Browse my computer for drivers" then "Let me pick from
a list of device drivers on my computer" at the Select Adapter screen under the Manufacturer
side select "Ralink Technology Corp."(first one) then select 802.11a/g Wireless Lan PCI. You will get the "update driver " warning Click yes.
Step 3. You should now see you wireless connections that are available.
Hope this helps:) please feel free to email any solutions you have are commets and/or questions.