Following are the steps to find your model number using HP utilities:
1. In Windows, press the fn + esc keys on the notebook’s keyboard to open the “HP System Information window”.
2. A Support Information window appears showing a product name and a product number. The product name shown might represent many types of models and is often not suitable for getting proper support for your computer. Instead, use the product number when working with HP Support. The product number contains a “#” character and is another form of model number that best represents your computer’s configuration. For reference see the image below:
3. If this window does not open, Click “Start”, type “HP” in the search field, and select “HP Support Assistant” from the search results list. Find the product number displayed on the bottom edge of the window.
If your computer does not boot to Windows, then you can locate the model and product number inside the “battery compartment” or “under a cover on the back of the notebook”. For reference see the image below:
Perhaps more importantly you say there are no stickers on the back of the laptop so have you got your Windows 7 licence key? how long have you owned the laptop and did you buy it from new?
OS Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1 CPU Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz Motherboard ASUSTeK COMPUTER INC. P8H77-M Memory 8.00 GB Graphics Card Intel(R) HD Graphics 4000 Sound Card On Board Monitor(s) Displays Dell 24"
Hard Drives (1) INTEL SSDSC2CT180A3 ATA Device (2) ST500DM002-1BD142 ATA Device (3) WDC WD3200AAKS-75L9A0 ATA Device (4) Generic- Compact Flash USB Device (5) Generic- MS/MS-Pro USB Device (6) Generic- SD/MMC USB Device (7) Generic- SM/xD-Picture USB Internet Speed 20Mb
OS Windows 7 Professional 32 bit CPU Pentium(R) Dual-Core CPU E5500 @ 2.80GHz Memory 2 GB Graphics Card NVIDIA GeForce 210 Monitor(s) Displays AOC Screen Resolution 1336x768
Keyboard POWERLOGIC™ Mouse POWERLOGIC™ Hard Drives WD Blue Edition SATA 500GB and 80GB IDE HDD Internet Speed 100.0 Mbps
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