ray_m Jan 30, 2017 2:44 PM
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You have a very old Laptop that came with Windows 7 installed. HP Support doesn't have any Windows 10 drivers for your laptop which may indicate your laptop when not be suitable to run Windows 10 on it correctly.
Here is HP Support Drivers download for your Laptop: HP Pavilion dv4-2040br Entertainment Notebook PC - Driver Downloads | HP® Customer Support . There are no updated Windows 7 Laptop BIOS or CHIPSETS for your Intel CPU since 2009 or 2011.