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‎04-28-2022 10:27 PM

HP Recommended
Product: HP EliteBook 840 G2 Base Model Notebook PC
Operating System: Microsoft Windows 10 (64-bit)

Good Evening, last night I decided to close the lid of my laptop with my external devices connected (Mouse and Keyboard). When I opened it, I got stuck at log in so I forced shut down my laptop. After that the mouse and keyboard stopped working. I checked device manager and I don't see the USB Drivers but there is one listed as "Unknown" and when I expand it, the drivers of USB is there and it says it's installed. I tried uninstalling and restarting my laptop but nothing happened, tried downloading the driver from Intel and ran the .exe file but it says operating system not supported, tried manually installing the driver by copying the path file in the driver installer/updater but nothing happened. I tried using the keyboard and mouse on other laptop but it worked. Also my mouse and keyboard lights up on start-up but after signing in it doesn't work anymore

How to solve this issue?

My Device is a HP Laptop Elitebook 840 G2

Windows 10 Pro 64-bit

Category:
8 REPLIES 8

‎04-29-2022 12:29 AM - edited ‎04-29-2022 12:30 AM

HP Recommended

I looked at the official HP Website for your laptop and found drivers that should help. Have a look and see if it works for you.

 

https://support.hp.com/us-en/drivers/selfservice/hp-elitebook-840-g2-notebook-pc/7343202

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‎04-29-2022 12:49 AM

HP Recommended

I downloaded the chipset and installed it. After I restarted my laptop nothing happened

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‎04-29-2022 12:59 AM

HP Recommended

Let us keep trying. Use the tips in this link.

 

https://www.drivereasy.com/knowledge/how-to-fix-unknown-devices/

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‎04-29-2022 01:18 AM

HP Recommended

MarcClint_0-1651216491634.png

MarcClint_1-1651216514194.pngMarcClint_2-1651216567069.pngMarcClint_3-1651216641376.pngMarcClint_4-1651216647956.png

MarcClint_5-1651216653979.png

The last three pictures are the scanned results of DriverEasy, none of them are related in updating the USB Drivers

 

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‎04-29-2022 01:19 AM

HP Recommended

MarcClint_0-1651216727310.png

Device manager looks like this, drivers seems to automatically install when I uninstall it

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‎04-29-2022 01:38 AM - edited ‎04-29-2022 01:39 AM

HP Recommended

It seems a PC Reset may work at this point, but I don't want you to lose your files. Unless you have backup storage to transfer your files to. A PC Reset should put the drivers in order.

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‎04-29-2022 02:07 AM

HP Recommended

I don't know where to transfer my files. Google Drive may help but I think it doesn't have the capacity to store all my files.

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‎04-29-2022 02:14 AM - edited ‎04-29-2022 02:16 AM

HP Recommended

Yes, true, OneDrive may help, I think they have a higher capacity compared to Google Drive on the upgraded plans. Dropbox is also an option as well on the upgraded plans as well. But it all depends on the amount of files you have stored on your PC.

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