How to recover after a win 8.1 upgrade goes wrong.

7 days ago i bought a Pavillion laptop and yesterday I upgraded to windows 8.1, after 5 hours it finally said to restart, however now I cannot get past the login screen, after entering my pin the screen goes blank with the status bar and pointer flashing on/off,   i thought it was still finalsing, but after 12 hours of the same, i shut down, after a few retries the computer still hangs at the same spot.    i have tried the F2 tests but it says everything is ok.
how do I get to do a recovery start, which key do I hold down while restarting the pc ?? there is nothing on it to save ,
I dont know if I would try and upgrade to 8.1 again.
thank John

Tap the F11 key after powering on to boot into Recovery. If that does not work-tap the Esc key after powering on to bring up the menu.Recovery option should be there.
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Yes I did reset the switch after the write erase. I do not think it reverted back to factory defaults though. I still get a login response when I telnet to the configured IP address, but no passwords seem to work. I have tried admin/admin as per the documentation defaults and the configured password, both reply with login incorrect. I have also tried no password.
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Win 8.1 Upgrade Disabled Twist Touch Screen Fixed

After a Win 8.1 Upgrade, I had no touch screen function. Calls to Lenovo led nowhere Same with searching Microsoft boards. I fixed the issue on Sunday 6/1- No help from Lenovo or Microsoft.
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Hi Cvj17,
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How to recover photos after restoring iPod touch?

Yesterday, there was an update for the iOS 6, I believe. When I pressed the update button, a message popped up saying that there was a problem with my iPod touch 4G and that I need to restore it. I had absolutely no idea why that message would pop up in the first place because my iPod was working just fine. But I couldn't update my iPod to the newest version if I didn't do what iTunes says... so I was about to restore my iPod, but then I was worried that all of my photos would disappear. So I decided to update my iOS later so that I could transfer all my files on to my computer. I then unplugged my iPod, and tried to turn it on but the home screen wouldn't pop - no matter what I did, all the screen showed was an itunes icon on top with a USB plug-in cord at the bottom. So I had no choice but to restore my iPod. The thing is, once I restored my iPod and all, my photos were all gone and I did not use iCloud as a back-up since a few months ago. All of my recent photos are now gone and I have no idea how to recover them. I've tried programs that aim to recover deleted photos, but they didn't work.
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My podcasts icon is no longer visible after swiping the "more" tab. Any assistance on how to recover it on my ipod touch?

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SOLUTION : iPhoto folder recovered after formatting hard drive by mistake.
I was able for recover my iPhoto library ( intact ) after formatting the hard drive by mistake.
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