I recommend that you visit the Toshiba Support website , search for the Satellite model you own, and look for a...
driver for your laptop's Wi-Fi adapter which supports Vista Business. Note that some Satellite models (for example, the L500-ST2521 and L500D-ST2531) support Vista Ultimate but not Vista Business. In addition, a conflict has been documented between many Toshiba laptop Wi-Fi adapters and Vista Service Pack 1. To learn more, search Support Bulletins on the support website for "Update Intel Wireless LAN Driver to prevent / fix lock-ups after installing Vista Service Pack 1." The steps required to fix that problem are detailed in that Support bulletin.
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