What is the password for Gateway Essential 566c Desktop PC?

if you are able to open the pc open it. Remove the cmos battery and turn on the pc and again turn of the pc and install the battery again. if it doesnt work try to locate the cmos jumper on the mother board and clear the bios

put the installation disc in the drive and boot to the CD. Just follow the on-screen instructions. Very easy.

See if this matches your model: http://support.gateway.com/s/Manuals/desktops/8510375.pdf

try to change harddisk flat cable..

Your harddisk has some bed sectors.
U have to go to delete all partrition then turn off the computer then again boot withwinxp disk
then create new partrtion then format ntfs quick
then it error not comes.

check the hard drive.western digital hard drives work good in this computer. ihave two of them.also windows xp home works good on this.or run the system recovery cd.lastly' re do the
windows installation.

Do you have a floppy disk in A:? Remove it and the pc will boot to the cd.

IF you have the XP installation CD you can easily do that, Just set your BIOS to boot from the CDrom then put the XP CD on your CD drive then restart the computer , so your computer will automatically boot from the XP installation CD then on that process you will have an option to format the entire hard drive that you have using the XP CD installation, then just let the installation finish...

insert a windows cd...boot from it and format the drive.

Reset your HD. Uplug all the cables connected to it and then plug them back in. Then try to boot from you xp cd. Let me know how it goes.