The problem with the driver could be related to the Windows ® version that you are using, in order for us to check on that, please use the following tool so we can get the system configuration that you are using.
The name of the tool is SSU tool (System Support Utility)
You will be able to download it on the following link:
Once you do that, the tool will allow you to save the information as a file, so, once you save it, please attach it to this thread.
Also, on the following link you will be able to get the driver for Intel® HD Graphics 4400, not sure if that is the one you installed, but now you can try to install it manually:
Windows®: 7 and 8:
And here is the link to install them manually:
Windows® 10 and 8:
Thank you very much for that information, it is very helpful for us.
Please try the following driver, it should fix this error:
Please let me know if the error got fixed by using that driver
It gives me this error "The driver being installed is not validated for this computer. Please obtain the appropriate driver from computer manufacturer. But the drivers provided by Acer aren't getting installed too. Then I installed it manually from device manager, now it installed.
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Thank you very much for that information.
It is great to hear that you were able to install the driver manually, and the PC is working fine now.
Any further assistance, please do not hesitate in contact us again.