For Windows Vista, click the Windows Start button, type "msinfo32" in the Search field, and press Enter. The System Information utility will appear, listing the computer's BIOS version in the pane at right.For Windows XP, click the Windows Start button, click Run, type "msinfo32" in the Open field, and press Enter. The System Information utility will appear, listing the computer's BIOS version in the pane at right.
Next, visit the Toshiba Support website, at support.toshiba.com, click Download, choose your computer from the model lists, and click Go. On the search results page, click the All Categories field, then click BIOS. A new results page will appear, showing just the current BIOS version for your computer. If you click the link for the BIOS, the Change History will appear, allowing you to review revisions to successive versions of the BIOS. The fix for the password prompt problem may be listed as "auto password prompt pop-ups", or a similar phrase.
If the version number of the BIOS listed on the Toshiba Support website is greater (newer) than the BIOS version displayed by the System Information utility, then connect the AC adapter to the computer, and click the Download Now button to download and install the BIOS.
To locate a Toshiba Authorized Service Provider (ASP), please visit the Toshiba Global ASP Locator at pcrepair.toshiba.com
