My computer displays an alert code 601.

Hello, I have a startup problem with my Compaq Presario CQ60 laptop. It displays the following message at startup: HP battery alert
The system has detected the storage capacity of the battery stated below to be very low
Primary (internal) battery (601)
Enter - continue startup
and after that, nothing happens, even when I press Enter. The system does not start. I am trying to reinstall it but it won’t boot from the CD. Can someone help me? Thank you

Configuration: Windows XP / Internet Explorer 7.0

5 answers