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smhdog
Paper Tape
Posts: 3
Registered: ‎03-02-2017
Location: GB
Views: 1,495
Message 1 of 5

Z570 only boots as far as a black screen

My Z570 (upgraded from original Windows 7 to Windows 10) locked up so was forced to restart.  On restarting, it showed the Lenovo boot screen, then briefly the Windows cubes, then the screen went black. Restarting again got as far as the recovery options. In the advanced options, I first selected the 'Repair' option, which went through the diagnosis cycle but reported that it could not repair the computer. Next tried to recover from restore points. There were 3 listed, all in 2017. All of them failed (one failure was trying to write to low-core at address x00000008). Next tried to reset choosing the option to re-install Windows keeping existing files. That worked, and normal service was resumed.

 

However a day later it locked up again and I was again forced to restart. The same symptoms then re-occurred - on restarting, it showed the Lenovo boot screen, then briefly the Windows cubes, then the screen went black. Repair didn't work, there were now no restore points, and this time reset didn't work either - it got part way through the reset and went to black screen.

 

So now completely stuck. Hitting F2 during boot, then F10 to save configuration, gets the computer to try a repair which then gets to me the recovery options. So I can start a command line to look at any logs that might exist.

 

Please advise next steps.

 

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 1,449
Message 2 of 5

Re: Z570 only boots as far as a black screen

Hi there, Smhdog        -

 

Thank you for writing in to the Lenovo Forum - happy to have you here today

 

  1. Turn off the computer.
    2. Unplug the charger and remove the battery.
    3. Press and hold down the power button for over one minute. This is to discharge any electrical build up.
    4. Plug the charger back and put the battery back into place.
    5. Reboot your computer.

Update us how it goes.

 

 

 

 

Regards,

 

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smhdog
Paper Tape
Posts: 3
Registered: ‎03-02-2017
Location: GB
Views: 1,437
Message 3 of 5

Re: Z570 only boots as far as a black screen

Interesting. In parallel to my forum post, I opened a support chat, where I submitted the exact same problem (with exact same wording). What you suggest was not mentioned. Instead they said to use One-Key Recovery to reset it right back to initial state (which is Windows 7). So that is what I am doing. Why the inconsistent advice - I assume you are both Lenovo support personnel?

smhdog
Paper Tape
Posts: 3
Registered: ‎03-02-2017
Location: GB
Views: 1,422
Message 4 of 5

Re: Z570 only boots as far as a black screen

So I have now reverted the Z570 to Windows 7, and it appears to be working ok.

 

But of course I was on Windows 10, having upgraded 8 months ago, and I am now back on Windows 7.  My suspicion is that a Windows 10 update broke something, so I will not be upgrading again.  Windows 7 is good enough for what I need at home.

 

Aside: At work I have ditched Windows and moved to Ubuntu.

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 1,320
Message 5 of 5

Re: Z570 only boots as far as a black screen

Great that all goes wellSmiley Happy

Please feel free to utilize our forums at any time.

 

 

 

 

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