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insert USB that contains installation Ubuntu file restart PC choose Ubuntu push Esc button chose graphic safe option reinstall Ubuntu notice : it's delete your Ubuntu volumes data I hope that this will be useful .


The kernel message "ACPI PCC probe failed." comes from the ACPI Platform Communication Channel driver when it can't find a PCC mailbox during the PCC probing initialisation phase. It is generally is not a fatal error and very likely has nothing to do with your failed boot. It is most probably the last kernel message you see before your system failed to ...


I am facing the same problem. I have tried huge number of things. At last I changed my graphics card with lower version which was old one. That solved the problem. I guess it was an issue with the graphics card (GPU).

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