Help me, please! - CDROM and archive canonical

[CountFoxx]

That list doesn't explain why the canonical archive and cdrom repositories are causing problems when you try the update/upgrade process. I would try a fresh start - it may be quicker than trying to untangle what has happened.

Is your system a dual or multi boot set up ?
If yes, then please can you explain what OS you have and the methods you used when installing Linux Lite 7.4

If the system is Linux Lite 7.4 only

Boot from your 7.4 Live media - do not attempt update at this stage
Install Linux Lite to your system using the erase disk - uncheck the download updates option
On successful completion, at 'Please Remove installation media' screen, remove the media and power off with long press of the power button.
Reboot, sign in and connect to the Internet.
Then attempt to update/upgrade and report back.

Computer
Processor Intel® Core™ i5-2520M CPU @ 2.50GHz
Memory 3883MB (2158MB used)
Machine Type Laptop
Operating System Linux Lite 7.4
User Name linuxlite (linuxlite)
Date/Time Fri 01 Aug 2025 11:17:43 AM BST

Display
Resolution 1366x768 pixels
OpenGL Renderer Mesa Intel® HD Graphics 3000 (SNB GT2)
X11 Vendor The X.Org Foundation

Audio Devices
Audio Adapter HDA-Intel - HDA Intel PCH

Input Devices
Lid Switch
Power Button
Sleep Button
Power Button
AT Translated Set 2 keyboard
AlpsPS/2 ALPS GlidePoint
Dell WMI hotkeys

Video Bus
HDA Intel PCH Mic
HDA Intel PCH Dock Mic
HDA Intel PCH Dock Line Out
HDA Intel PCH Headphone
HDA Intel PCH HDMI/DP,pcm:3
HDA Intel PCH HDMI/DP,pcm:7
HDA Intel PCH HDMI/DP,pcm:8
2.4G Mouse
2.4G Mouse

I tried booting and updating the package software both ways. It downloads the package but runs into problems installing it.  I tried to save the error log several times so I could present it here, but when I go to the folder where it should have been stored, it's not there.

The laptop doesn't have an erase disk, only USB ports.  And I did everything else previously to your instructions, before coming on here for help.

I go to Menu/Favourites/Install Updates - Get the latest updates for your computer.  Then it tells me, "You have the latest updates."  I'm puzzled!