10 Second Summary
1. Press ⊞ Win+R.
2. Type in "msinfo32" without quotes.
3. Click OK.
4. Find and write down the "System SKU" number.
Using System Information
Hold down ⊞ Win and press R.
This will open the "Run" command on any Windows PC.
- On PCs running Windows 7 or later, you can also right-click the Start menu and then click Run.
Type msinfo32 into Run. Do so in the search bar to the right of the "Open:" heading.
Click OK. This will open the Windows System Information utility, which contains details about your specific model of computer.
Find the "System SKU" section.
It's near the middle of the System Information page. The number listed to the right of "System SKU" is your HP laptop's model number.
- You can also find your computer's product name in this window by looking at the name next to the "System Model" category.
Write down the SKU number.
Providing this information to a tech or using it to inform a search query for drivers or hardware will ensure that your laptop receives pertinent information.
Using the Product Label
Shut down your laptop.
You can do this on any version of Windows by holding down the laptop's power button until the machine turns off.
- Make sure you save and close all work before doing this.
- On Windows Vista and up, you can click the Start button in the bottom-left corner of the screen, click the power icon, and click Shut down.
Unplug your laptop from any power sources. This is to ensure that you don't get shocked when you remove your laptop's battery.
Turn your laptop over and remove its battery.
In most cases, you'll do so by sliding a switch to the left or right, holding it there, and gently sliding the battery out.
- If there is a sticker on the bottom of your laptop with product information, you may not need to remove the battery.
Find the "Product" label.
Typically, this label will be in a section separate from the "Regulatory" part of the information here. Next to the "Product" label will be a series of numbers and letters; this is your HP laptop's model number.
- If you can't find "Product", look for a "Serial" heading. While your laptop's model number doesn't correlate to the serial number, it's usually listed somewhere below the serial number.
Write down the model number. If you're ever trying to get help for your laptop from a technician, providing them with this number will likely speed up the service process.
Credit : http://www.wikihow.com/Find-the-Model-Number-of-an-HP-Laptop