While updating endavouros it failed due to some net issues even though my net was fine but after then booting into any arch iso i.e cachyos, arch, I get pacman error, while it worked one time on endeavour with usb tethering but that still doesn’t work wirelessly and no other arch based distro are able to install.
My log file - https://paste.cachyos.org/p/5859c68.log
And after a failed installation when my computer reboots it shows updating dont power off.
Edit - Endavouros somehow installs only on USB tethering and would give some pacman error when connected wirelessly.
Welcome to the forum 
This looks more like a message coming from Windows , or some firmware/BIOS update, but without information about your system it would be just guessing. So please look at this Wiki and if possible give us as much information as you can about your system.
Is this a Dual boot?
Is Windows Fastboot turned off?
Is Secureboot Disabled(bios)?
agree with @keescase this is something from windows
I am not dual booting nor did I update my bios it’s just the os that I was updating using **sudo pacman -Syu**.
No this not dual boot and yes secure boot is disabled as I had disabled it during the initial installation of my OS and Endavouros is the only os on my drive.
So are you installing or updating these two are very different things. Your Title says INSTALLATION. Please be specific as to what the problem is. Is this an update issue or an Install issue?
Sorry for the confusion, what i meant to say is these issues started when i was updating Endavouros through sudo pacman -Syu which failed. So, I decided to reinstall the os as i wanted to have a fresh install but while doing so I encountered the same error in each and every arch iso, I tried installing, though Endavouros os was the only iso which managed to install but that to using usb tethering, no iso was able to install using the wireless network. Endavouros also gave me the same error related to pacman in liveiso if wireless network was used.
https://dpaste.com/9TSR3XMKS - boot log
https://dpaste.com/H44HJZ886 - Hardware Information
Partition Info -
NAME TYPE SIZE PTTYPE FSTYPE
nvme0n1 disk 476.9G gpt
├─nvme0n1p1 part 2G gpt vfat
└─nvme0n1p2 part 474.9G gpt ext4
Sorry for the weird formatting.
The only thing that I noticed is this
Jun 10 15:15:43 kaboom kernel: Key type big_key registered
Jun 10 15:15:43 kaboom kernel: integrity: Loading X.509 certificate: UEFI:db
Jun 10 15:15:43 kaboom kernel: integrity: Loaded X.509 cert 'Microsoft Windows Production PCA 2011: a92902398e16c49778cd90f99e4f9ae17c55af53'
Jun 10 15:15:43 kaboom kernel: integrity: Loading X.509 certificate: UEFI:db
Jun 10 15:15:43 kaboom kernel: integrity: Loaded X.509 cert 'Microsoft Corporation: Windows UEFI CA 2023: aefc5fbbbe055d8f8daa585473499417ab5a5272'
Jun 10 15:15:43 kaboom kernel: integrity: Loading X.509 certificate: UEFI:db
Jun 10 15:15:43 kaboom kernel: integrity: Loaded X.509 cert 'Microsoft Corporation UEFI CA 2011: 13adbf4309bd82709c8cd54f316ed522988a1bd4'
Jun 10 15:15:43 kaboom kernel: integrity: Loading X.509 certificate: UEFI:db
Jun 10 15:15:43 kaboom kernel: integrity: Loaded X.509 cert 'Microsoft UEFI CA 2023: 81aa6b3244c935bce0d6628af39827421e32497d'
Jun 10 15:15:43 kaboom kernel: integrity: Loading X.509 certificate: UEFI:db
Jun 10 15:15:43 kaboom kernel: integrity: Loaded X.509 cert 'Lenovo Consumer SMB UEFI: 5252936d671a8a37b34d76030d24385e3589d606'
Jun 10 15:15:43 kaboom kernel: integrity: Loading X.509 certificate: UEFI:db
Jun 10 15:15:43 kaboom kernel: integrity: Loaded X.509 cert 'Certificate_S3: 8fca59f4175553dab81c87830d0b4edb37b7d562'
Jun 10 15:15:43 kaboom kernel: integrity: Loading X.509 certificate: UEFI:db
Jun 10 15:15:43 kaboom kernel: integrity: Loaded X.509 cert 'Microsoft Option ROM UEFI CA 2023: 514fbf937fa46fb57bf07af8bed84b3b864b1711
So that probably explained the update message that you got, for updating the keys, if this could cause problems with your wifi I honestly don’t know.
How do I fix it then, cause it’s happening in the live iso which shouldn’t have happen.
Well I had X.509 errors after updating my BIOS, but it did not prevent my system from booting or caused any other problems. Solved it by removing the keys from my BIOS. But I don’t have a encrypted system or something like that, so it couldn’t do any harm, not sure it will cause problems on your system or not,removing those keys, I am sorry to tell you. Maybe someone with better knowledge about this will chime in and can help you out. BTW I found this keys in the BIOS section concerning Secure boot settings.
I tried installing nixos for now and it works just that my wifi is giving some hard time so maybe it’s something with wifi dns would try resetting it.
Thank you for the help.