Ubuntu freezes after login as I have installed it for the first time. After some research I found that the problem was in GPU. so now I am installing it but 'apt-get update' gives the error shown below.

unable to fetch some archives, may be run apt-get update or try with --fix-missing

put on hold as unclear what you're asking by karel, Elder Geek, guntbert, mook765, Eric Carvalho Dec 8 at 12:22

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  • Try sudo apt update --fix-missing and then sudo apt upgrade --fix-missing – Hobbyist Dec 2 at 12:21
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    Welcome to AskUbuntu! Please edit your post to include to output of lsb_release -a and uname -a The output of sudo lshw -C display might also be useful. Thank you for helping us help you! – Elder Geek Dec 4 at 16:47

Have you tried changing settings in the grub during the boot? I mean, when you can change the different kernels, you could press E and then add nomodeset before quiet splash. Then CTRL+X This should ensure no freezes during the first boot. Then, you need to add the repository with sudo add-apt-repository ppa:graphics-drivers/ppa and then sudo apt-get upgrade. Finally, you can install Nvidia drivers. First, look at the best one for your card with the command ubuntu-drivers devices. Then sudo apt-install nvidia-drivers-xxxx. Choose the new drivers from driver settings and reboot.

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