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i sodoed a code (i had copied it from a website, i dont remember which) to show "all" startup applications, without knowing the importance of "Detect-New-Hardware-On-Start-Up" Option, I unchecked it and removed it from the list, now my Touchpad, WiFi, Bluetooth, are not getting detected, i regret for messing it and help is badly/urgently needed, thanks.

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up vote 1 down vote accepted

I'd suggest creating a new user from the recovery mode. The command to use is adduser desired_username sudo.

You'll be asked for a password, and when done, run sudo reboot.

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