Upon starting my Asus laptop i get a message : Port 0 : WDC WD320000BPVT-80ZESTO S.M.A.R.T status bad, back up and replace

that may be a virus/.

shut the computer off cold with power button, wait 20 seconds and restart it.

something has locked the hardrive

Hi Rajendra Mishra,

Try running a hardware diagnostic using the below link:

http://dell.to/190HjBV

Make a note of the error codes that appear (if any). Then depending upon the test results can check and suggest what can be done.

Thanks and Regards.
Kiran Kumar.
#iworkfordell.

THE PROBLEM WITH HARD DISK

Did you just open the hard drive and install it out of the box? If that is what you did, then the computer its self will see the hardware but vista or any other operating system for that matter wont read it without a partition hence no drive letter....download a partition program like easius partition manager or partition commander and create your partition and windows will be able to see the drive. Once windows see's the drive then you have to format it! Once its formatted then your up and running. I hope this helps, comment back and let me know...thanks

SMART means self monitoring and reporting tool, this is the option which performs certain test for the status of hard disk health, if its coming it means condition of your hard disk is not good, its better if you immediately back up your data and replace it, by the way you can also disable this warning through the bios, just disable the smart feature in hard disk

Sounds like either a bad stick of memory or a bad dimm slot . Have you tried the memory on another motherboard ?