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incydeu
Ctrl-Alt-Del
Posts: 13
Registered: ‎01-12-2013
Location: USA
Views: 7,973
Message 1 of 5

Lenovo S405 How To: Re-Install Windows 8 if you have lost your recovery partition

To help some people out... I read some of you formatted your drive and now are stuck without the ability to restore Win 8 if you went to Win 7 before you knew there was an issue, or lost your recovery partition for any other reason. FYI, if you can get your hands on ANY Win 8 disk (doesn't matter if its Professional or the Regular version) and install it, your serial key for Win 8 is hardcoded into your motherboard BIOS. Therefore, if you have access to a disk, you can simply install and it will auto activate and install your pre installed key. No need to spend $90 or more if you don't have to.

 

If you don't have an external DVD Drive, simply download the Win7 to USB tool from Microsoft (it will work for Win 8) and transfer the disk image to a USB thumb drive (from another PC of course). Then boot from the thumb drive to install. Note: You will have to go into the BIOS to turn OFF UEFI and allow it to boot and install from a thumb drive.

 

In my experience, I had to turn off UEFI in the BIOS (Get to BIOS by pressing F2 at boot). By turn off, I mean place in "Legacy" mode. Then save and exit and allow to restart. Upon restart, enter the BIOS once again and you should now see your thumb drive appear on the list of bootable devices (the thumb drive has to be connected BEFORE booting into BIOS). Move the thumb drive up the list to be the first boot device, save and exit and you are in business.

 

Also, if you have access to the MSDN, you can actually download the RTM version of Win 8 which once its installed will auto activate and install using your hard coded serial making it a legit, normal copy.

 

I tried to write this as more of an overview and less of a "hand-holding" article for the purpose of quick reference. Any questions, please post. I will not provide links to any software mentioned in this article. Search engines are your friend.

twqwctf
Punch Card
Posts: 20
Registered: ‎01-22-2013
Location: Virginia
Views: 7,892
Message 2 of 5

Re: Lenovo S405 How To: Re-Install Windows 8 if you have lost your recovery partition

This is very helpful and informative, thank you for posting!

bthjf1
Paper Tape
Posts: 7
Registered: ‎03-26-2013
Location: England
Views: 7,365
Message 3 of 5

Re: Lenovo S405 How To: Re-Install Windows 8 if you have lost your recovery partition

Thank you very much. You saved my day Smiley Happy

bthjf1
Paper Tape
Posts: 7
Registered: ‎03-26-2013
Location: England
Views: 7,354
Message 4 of 5

Re: Lenovo S405 How To: Re-Install Windows 8 if you have lost your recovery partition

After changing from UEFI to Legacy mode the function keys (F2 or Fn + F2) are not working anymore. I can't access the BIOS anymore and boot from the USB. Any idea? Thanks

 

All Ok now. Please ignore my previous comment

 

 

khassan
What's DOS?
Posts: 1
Registered: ‎04-05-2013
Location: Kazakhstan
Views: 7,214
Message 5 of 5

Re: Lenovo S405 How To: Re-Install Windows 8 if you have lost your recovery partition

Where can I download windose 8 to install from a flash drive?
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