Instructions for replacing the hard drive
854126-121  4 
5.  Position the access panel on the computer and slide it 
into place (1). Tighten the captive screw in the rear of 
the cover (2). 
6.  Press the power button to turn on the computer. 
System recovery 
NOTE: If your hard disk drive was shipped without an operating 
system installed, you must reinstall the operating system using the 
system recovery discs. To install the operating system, refer to the 
instructions included with your system recovery discs, or for U.S. 
product support, go to http://www.hp.com/go/contactHP. 
For worldwide product support, go to 
http://welcome.hp.com/country/us/en/wwcontact_us.html. 
IMPORTANT: 
Do not turn off the computer during the initial 
setup process. Please allow the process to complete to 
ensure that everything that is necessary to operate the 
computer is installed properly. The system recovery process 
will take approximately 3 hours. When system recovery is 
complete, the computer will reboot and the Windows Setup 
screen will be displayed. 
After the operating system has been installed, you must reinstall 
any applications and restore any data that you backed up. 
After the setup has been completed, you must reinstall any 
applications and restore any data that you backed up. If you 
need further assistance, please call 1-800-474-6836 (1-800-HP 
Invent) if in the U.S. For worldwide product support, see 
http://welcome.hp.com/country/w1/en/support.html.
If your hard drive was shipped with an operating system (image) 
installed, system recovery disks are not required for setup. Turn 
on the computer and allow the initial startup process to 
completely set up the operating system. 
IMPORTANT: 
Do not turn off the computer during the initial 
startup process. Please allow the startup process to complete 
to ensure that everything that is necessary to operate the 
computer is installed properly.
After the setup has been completed, you must reinstall any 
applications and restore any data that you backed up. If you 
need further assistance, please call 1-800-474-6836 (1-800-HP 
Invent) if in the U.S. For worldwide product support, see 
http://welcome.hp.com/country/w1/en/support.html. 








