I took the advice of updating via the Terminal. Pasting the output here, in case it can be helpful to resolve any bugs ... adrian@CyberPowerPC:~$ sudo apt update && sudo apt upgrade && sudo apt autoremove Ign:1 http://dl.google.com/linux/chrome/deb stable InRelease Hit:2 http://repo.steampowered.com/steam precise InRelease Hit:3 http://archive.canonical.com/ubuntu bionic InRelease Get:4 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB] Hit:5 http://us.archive.ubuntu.com/ubuntu bionic InRelease Hit:6 http://dl.google.com/linux/chrome/deb stable Release Hit:7 http://ppa.launchpad.net/cwchien/gradle/ubuntu bionic InRelease Get:8 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB] Hit:9 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu bionic InRelease Get:10 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB] Hit:12 http://ppa.launchpad.net/ubuntubudgie/backports/ubuntu bionic InRelease Fetched 247 kB in 2s (148 kB/s) Reading package lists... Done Building dependency tree Reading state information... Done 11 packages can be upgraded. Run 'apt list --upgradable' to see them. W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386' W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:51 and /etc/apt/sources.list.d/google-chrome.list:3 Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages were automatically installed and are no longer required: linux-aws-tools-4.15.0-1023 linux-tools-4.15.0-1023-aws Use 'sudo apt autoremove' to remove them. The following NEW packages will be installed: linux-aws-tools-4.15.0-1025 linux-tools-4.15.0-1025-aws The following packages will be upgraded: friendly-recovery gir1.2-nautilus-3.0 libnautilus-extension1a linux-tools-aws man-db nautilus nautilus-data python3-update-manager unattended-upgrades update-manager update-manager-core 11 upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 3,762 kB of archives. After this operation, 6,202 kB of additional disk space will be used. Do you want to continue? [Y/n] Get:1 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 man-db amd64 2.8.3-2ubuntu0.1 [1,019 kB] Get:2 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 friendly-recovery all 0.2.38ubuntu1 [8,912 B] Get:3 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 python3-update-manager all 1:18.04.11.6 [34.9 kB] Get:4 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 update-manager-core all 1:18.04.11.6 [8,484 B] Get:5 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 update-manager all 1:18.04.11.6 [551 kB] Get:6 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 nautilus amd64 1:3.26.4-0~ubuntu18.04.1 [808 kB] Get:7 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 nautilus-data all 1:3.26.4-0~ubuntu18.04.1 [68.9 kB] Get:8 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libnautilus-extension1a amd64 1:3.26.4-0~ubuntu18.04.1 [15.2 kB] Get:9 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 gir1.2-nautilus-3.0 amd64 1:3.26.4-0~ubuntu18.04.1 [5,524 B] Get:10 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 linux-aws-tools-4.15.0-1025 amd64 4.15.0-1025.25 [1,200 kB] Get:11 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 linux-tools-4.15.0-1025-aws amd64 4.15.0-1025.25 [1,936 B] Get:12 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 linux-tools-aws amd64 4.15.0.1025.25 [2,376 B] Get:13 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 unattended-upgrades all 1.1ubuntu1.18.04.6 [37.7 kB] Fetched 3,762 kB in 1s (3,650 kB/s) Preconfiguring packages ... (Reading database ... 251282 files and directories currently installed.) Preparing to unpack .../00-man-db_2.8.3-2ubuntu0.1_amd64.deb ... Unpacking man-db (2.8.3-2ubuntu0.1) over (2.8.3-2) ... Preparing to unpack .../01-friendly-recovery_0.2.38ubuntu1_all.deb ... Removed /etc/systemd/system/emergency.target.wants/friendly-recovery.service. Removed /etc/systemd/system/sysinit.target.wants/friendly-recovery.service. Removed /etc/systemd/system/rescue.target.wants/friendly-recovery.service. Unpacking friendly-recovery (0.2.38ubuntu1) over (0.2.38) ... Preparing to unpack .../02-python3-update-manager_1%3a18.04.11.6_all.deb ... Unpacking python3-update-manager (1:18.04.11.6) over (1:18.04.11.5) ... Preparing to unpack .../03-update-manager-core_1%3a18.04.11.6_all.deb ... Unpacking update-manager-core (1:18.04.11.6) over (1:18.04.11.5) ... Preparing to unpack .../04-update-manager_1%3a18.04.11.6_all.deb ... Unpacking update-manager (1:18.04.11.6) over (1:18.04.11.5) ... Preparing to unpack .../05-nautilus_1%3a3.26.4-0~ubuntu18.04.1_amd64.deb ... Unpacking nautilus (1:3.26.4-0~ubuntu18.04.1) over (1:3.26.3-0ubuntu4) ... Preparing to unpack .../06-nautilus-data_1%3a3.26.4-0~ubuntu18.04.1_all.deb ... Unpacking nautilus-data (1:3.26.4-0~ubuntu18.04.1) over (1:3.26.3-0ubuntu4) ... Preparing to unpack .../07-libnautilus-extension1a_1%3a3.26.4-0~ubuntu18.04.1_amd64.deb ... Unpacking libnautilus-extension1a:amd64 (1:3.26.4-0~ubuntu18.04.1) over (1:3.26.3-0ubuntu4) ... Preparing to unpack .../08-gir1.2-nautilus-3.0_1%3a3.26.4-0~ubuntu18.04.1_amd64.deb ... Unpacking gir1.2-nautilus-3.0:amd64 (1:3.26.4-0~ubuntu18.04.1) over (1:3.26.3-0ubuntu4) ... Selecting previously unselected package linux-aws-tools-4.15.0-1025. Preparing to unpack .../09-linux-aws-tools-4.15.0-1025_4.15.0-1025.25_amd64.deb ... Unpacking linux-aws-tools-4.15.0-1025 (4.15.0-1025.25) ... Selecting previously unselected package linux-tools-4.15.0-1025-aws. Preparing to unpack .../10-linux-tools-4.15.0-1025-aws_4.15.0-1025.25_amd64.deb ... Unpacking linux-tools-4.15.0-1025-aws (4.15.0-1025.25) ... Preparing to unpack .../11-linux-tools-aws_4.15.0.1025.25_amd64.deb ... Unpacking linux-tools-aws (4.15.0.1025.25) over (4.15.0.1023.23) ... Preparing to unpack .../12-unattended-upgrades_1.1ubuntu1.18.04.6_all.deb ... Unpacking unattended-upgrades (1.1ubuntu1.18.04.6) over (1.1ubuntu1.18.04.4) ... Setting up nautilus-data (1:3.26.4-0~ubuntu18.04.1) ... Processing triggers for mime-support (3.60ubuntu1) ... Processing triggers for ureadahead (0.100.0-20) ... ureadahead will be reprofiled on next reboot Processing triggers for desktop-file-utils (0.23-1ubuntu3.18.04.1) ... Processing triggers for libglib2.0-0:amd64 (2.56.2-0ubuntu0.18.04.2) ... Setting up python3-update-manager (1:18.04.11.6) ... Setting up linux-aws-tools-4.15.0-1025 (4.15.0-1025.25) ... Processing triggers for bamfdaemon (0.5.3+18.04.20180207.2-0ubuntu1) ... Rebuilding /usr/share/applications/bamf-2.index... Processing triggers for libc-bin (2.27-3ubuntu1) ... Setting up libnautilus-extension1a:amd64 (1:3.26.4-0~ubuntu18.04.1) ... Processing triggers for systemd (237-3ubuntu10.3) ... Setting up unattended-upgrades (1.1ubuntu1.18.04.6) ... Setting up man-db (2.8.3-2ubuntu0.1) ... Updating database of manual pages ... Processing triggers for gnome-menus (3.13.3-11ubuntu1.1) ... Setting up friendly-recovery (0.2.38ubuntu1) ... Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.15.0-38-generic Found initrd image: /boot/initrd.img-4.15.0-38-generic Found linux image: /boot/vmlinuz-4.15.0-36-generic Found initrd image: /boot/initrd.img-4.15.0-36-generic Found memtest86+ image: /boot/memtest86+.elf Found memtest86+ image: /boot/memtest86+.bin Found Windows 10 on /dev/sdg1 Found Windows 7 on /dev/sdg2 done Processing triggers for hicolor-icon-theme (0.17-2) ... Setting up nautilus (1:3.26.4-0~ubuntu18.04.1) ... Setting up linux-tools-4.15.0-1025-aws (4.15.0-1025.25) ... Setting up update-manager-core (1:18.04.11.6) ... Setting up gir1.2-nautilus-3.0:amd64 (1:3.26.4-0~ubuntu18.04.1) ... Setting up linux-tools-aws (4.15.0.1025.25) ... Setting up update-manager (1:18.04.11.6) ... Processing triggers for libc-bin (2.27-3ubuntu1) ... Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: linux-aws-tools-4.15.0-1023 linux-tools-4.15.0-1023-aws 0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded. After this operation, 6,182 kB disk space will be freed. Do you want to continue? [Y/n] (Reading database ... 251304 files and directories currently installed.) Removing linux-tools-4.15.0-1023-aws (4.15.0-1023.23) ... Removing linux-aws-tools-4.15.0-1023 (4.15.0-1023.23) ... adrian@CyberPowerPC:~$