"Pavilion" is the name of a long line of HP PCs; you would need to specify the exact model number. In general, newer PCs have bigger and faster hard drives, and if you wanted to replace the drive, there are a wide variety of choices of size and speed that would fit.
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A Sata laptop hard drives can cost anywhere from below one hundred dollars to over three hundred dollars, depending on the amount of hard drive one needs.
http://www.nextag.com/HP-Pavillion-dv9548-laptop/compare-html
Laptop hard drives are very similar to desktop hard drives, indeed they work in exactly the same way and even use the same interfaces. However laptop hard drives are designed to be much smaller (2 inches as opposed to 3.5) and draw less power than desktop hard drives. As a result laptop hard drives are usually much slower in terms of data transfer and have much smaller storage capacity than a desktop hard drive of the same year manufacture. With an adapter it is possible to use a laptop hard drive in a desktop computer, and if mounted externally it is also possible to use a desktop hard drive on a laptop.
Really, every laptop is different in hard drive capacity. Though, what is quickly becoming the standard is 320 gigabytes of hard drive space. More and more laptops, though, are offering half of a terabyte of hard drive space.
not much. The data remains on idsk unless overwritten.refer toWhat_happens_when_you_format_a_Hard_Drive
The HP Pavilion dv2000 laptop weighs approximately 5.3 pounds (2.4 kg).
You should check your laptop manufacturer's website for details on how to replace the hard drive. If the drive is user-replaceable they should have the schematics on how to do so. When you replace your drive, remember to get a drive of the same speed. If you get a faster one, you might cause too much heat build-up in the case.
nearly 299 Euro for more details show this
you will get around 297GB space in your hard drive
The new slim models can be upgraded with separately bought hard drive or you can mod your own for much cheaper buy formatting a laptop hard drive with the xbox format
The Compaq Presario is the cheapest HP Laptop computer and it sells for $349 after savings and rebaits. Its features inlcude 2MB Hard Drive, and it is EneryStar compliant.