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- How to downgrade bios

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09-01-2019 03:46 PM
Product: HP Probook 645 G1
Operating System: Microsoft Windows 10 (64-bit)
I recently updated my Probook 645g1 bios. It started lagging and is slow. I have installed new fresh windows but still the same. I have downloaded the bios from HP website. I tried downgrading but didn't work out. Please help me...
Windows 10 pro x64
4gb ram
320 gb HHD

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