i REINSTALLED WINDOWS 7 ON MY DELL LAPTOP AND NOW THE WIRELESS IS NOT WORKING. i BELIEVE THE COMPUTER DOESNT EVEN SEE THE WIRELESS ADAPTER. PLEASE HELP =(
Maybe provide a little more info: Model of Dell laptop? Newer network adapter drivers installed other than default W7 drivers? Any (errors) under Device Manager > Network Adapters? What does Network and Sharing Center reveal about active networks and/or connections? Is your W7 (re)installation media clean/untouched?
Download correct drivers from dell website also remember on laptops there is button to enable and disable wireless adaptor.