I am having some issues with the above laptop, they have the usual integrated Intel GPU and also a dedicated NVidia 840M GPU. After the laptops have been configured (Windows 7) and I install the NVidia drivers everything works fine for the first few reboots but then whenever I try to log into a user account I just get stuck at "welcome".
I have isolated the cause of this to be the Nvidia drivers as if they are not present on the system no error occurs. This is quite a big problem for us as the laptops were bought for users with high spec needs within an education environment.
I have tried the drivers supplied with the laptop (372.54) and the latest ones from Nvidia (372.70).
Any help with this issue would be greatly appreciated.
I would suggest you to update the BIOS, uninstall and reinstall the video card driver from Dell website as these drivers are tested on the Dell system. Please follow the steps mentioned below to uninstall the video card.
After the uninstall finishes restart the system. Then reinstall the Intel video card driver first and then Nvidia card driver on the system for issue resolution. Please enter your service tag # on the link below, select the OS, then download the BIOS from BIOS section and then video card drivers from Video section onto the system and install it.
Please let me know if this helps.
I've tried everything you suggested in your post but the first time I reboot the machine after the NVidia drivers have been installed it once again just hangs on the welcome screen.
I would suggest you to boot into the safe mode (F8 During startup) to check if you are able to login.
Also, We need to check if the issue is caused due to any application installed on the system. So please clean boot the system using the link below and check if the issue reoccurs.
Also, please see that No external device are connected to the system.
Booting into safe mode works as it should.
I have already tried doing a clean boot as this is how I diagnosed the problem to be with the NVidia drivers, the issue doesn't reoccur until I enable the NVidia items again.