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xera
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Posts: 25
Registered: ‎09-22-2014
Location: CH
Views: 3,041
Message 1 of 11

T420s: Can't use Lenovo recovery after Windows 10 upgrade

After upgrading from Windows 7 to Windows 10, my T420s felt quite slow, so I did a factory reset via the Windows 10 settings. Of course, this deleted the Windows.old folder of the previous OS, but I thought I could simply use the Lenovo recovery if I didn't like W10. I also didn't create a recovery CD.

 

Now I want to go back to W7, but unfortunately, when I press F11 during the recovery message while booting, nothing happens. The machine simply boots normally. I can still see the Lenovo_Recovery partition in the explorer, but there are no options to create recovery media. Starting the .exe inside and trying to create one results in an error message, telling me that Rescue and Recovery isn't installed. I also can't just install that, because it's incompatible with Windows 10.

 

So, does anyone have an idea how I could install Windows 7 again? Can I somehow fix the recovery partition? Can someone send me an .iso of a recovery CD for the t420s?

 

Thanks!

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 3,030
Message 2 of 11

Re: T420s: Can't use Lenovo recovery after Windows 10 upgrade

It might have altered the bootloader, which is what loads the Lenovo recovery environment.

Do you have UEFI enabled?

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
xera
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Posts: 25
Registered: ‎09-22-2014
Location: CH
Views: 3,015
Message 3 of 11

Re: T420s: Can't use Lenovo recovery after Windows 10 upgrade

Could be, can I restore the bootloader?

 

With legacy/both the PC starts normally as described. With UEFI only, after the splash screen there is a "Boot Menu" box with the name of the SSD, but when I press enter, the same screen appears again, so that somehow doesn't work at all.

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 3,004
Message 4 of 11

Re: T420s: Can't use Lenovo recovery after Windows 10 upgrade

You might be able to restore the bootloader by installing Rescue and Recovery in Windows, but no guarantees.

You can also directly apply the factory image in the recovery position using Dism or ImageX from a second computer or using a WinPE environment (e.g. a generic Windows setup disk). This method is fairly complex though.

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
xera
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Posts: 25
Registered: ‎09-22-2014
Location: CH
Views: 2,999
Message 5 of 11

Re: T420s: Can't use Lenovo recovery after Windows 10 upgrade

Rescue and recovery isn't compatible with Windows 10, I already tried installing it.

 

At the moment I don't have access to another computer. Is there a tutorial for the WinPE solution?

Community SeniorMod
Community SeniorMod
Posts: 11,684
Registered: ‎06-06-2011
Location: RU
Views: 2,994
Message 6 of 11

Re: T420s: Can't use Lenovo recovery after Windows 10 upgrade

xera,

have a look at the Lenovo_Recovery partition. Are there *.wim files (some folders on that partition are hidden)?



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique hand-made config
ThinkPad 25 Special Anniversary Edition. #retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
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xera
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Posts: 25
Registered: ‎09-22-2014
Location: CH
Views: 2,991
Message 7 of 11

Re: T420s: Can't use Lenovo recovery after Windows 10 upgrade

Yes, in the folder FactoryRecovery there are cdrivebackup.wim (13 GB) and sdrivebackup.wim (300 MB) among other files. I guess the bigger one is the backup file. What do I do with it, copy the contents on a USB stick/CD? How?

Community SeniorMod
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Location: RU
Views: 2,975
Message 8 of 11

Re: T420s: Can't use Lenovo recovery after Windows 10 upgrade

There are several techniques.

Have a look at this thread and the ones inside of it:
https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/Restoring-OS-and-Drivers-after-x230-HDD-repla...

Especially this one:
http://forums.lenovo.com/t5/ThinkVantage-Technologies/Restore-System-from-Q-Lenovo-Recovery-Drive/td...

Get imagex.exe mentioned inside of the cdrivebackup.wim using 7-Zip.



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique hand-made config
ThinkPad 25 Special Anniversary Edition. #retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
ThinkPad Stack • 2.4/5 Wireless Router, HDD 1 TB, BT Speaker, Power Bank, Mobile Projector

Do it well, worse becomes itself

Communities:   English    Deutsche    Español    Portugues    Русскоязычное    Česká    Slovenská    Українська   Moto English

xera
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Posts: 25
Registered: ‎09-22-2014
Location: CH
Views: 2,912
Message 9 of 11

Betreff: T420s: Can't use Lenovo recovery after Windows 10 upgrade

Something very bad happened... I found the recovery dvds I thought I had lost and started the recovery process. But the copying process always stopped after a while, and after some testing it turns out the data on the dvds is corrupted and not usable anymore. So I now have a T420s with an empty hard disk and no recovery media whatsoever. Can I download an .iso file for a T420s somewhere? Or could someone here create an image of the disk for me and upload it? Do I have to contact lenovo?
Community SeniorMod
Community SeniorMod
Posts: 11,684
Registered: ‎06-06-2011
Location: RU
Views: 2,903
Message 10 of 11

Betreff: T420s: Can't use Lenovo recovery after Windows 10 upgrade

Unfortunately, you are not alone with this issue, there is a lot of the same cases on the forum.

 

There isn't iso recovery image on the Lenovo site.

You might contact Lenovo authorized service provider to purchase recovery disks for your laptop. Or visit this site:
https://www.lenovorecovery.com/Extranet/Home.aspx



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique hand-made config
ThinkPad 25 Special Anniversary Edition. #retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
ThinkPad Stack • 2.4/5 Wireless Router, HDD 1 TB, BT Speaker, Power Bank, Mobile Projector

Do it well, worse becomes itself

Communities:   English    Deutsche    Español    Portugues    Русскоязычное    Česká    Slovenská    Українська   Moto English

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