Technology Insights

The AC Power Adapter Type Cannot Be Determined, Please Connect A Dell 90W AC Adapter

Last night I upgraded the BIOS on my Dell Studio XPS 13 from A11 to A14. The BIOS upgrade appeared to work without issue however when the computer rebooted with the new BIOS version I received a boot error and then once I skipped the error I received a popup message within Windows 7 as well. The problem ended up being something really silly which is explained below but I wanted to note in case someone else ran into the same issue.

Technology Insights

Get The BIOS Version For A Windows 7 Computer

Getting the BIOS version for a Windows 7 computer can be completed by checking Windows System Information or by verifying it using the Registry Editor. Below we first describe how to open the Windows System Information window to verify your computers BIOS version which includes an example image so you know what to look for. After the System Information method we then describe how to check the Registry Editor to verify the BIOS version.