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SoNar83
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Posts: 16
Registered: ‎08-11-2015
Location: Belgium
Views: 1,329
Message 1 of 9

Can you still perform a factory reset after a clean install?

I had performed a clean install of windows 10 on my Z50-70 a few years ago (where I had to manually reïnstall every driver and application including OneKey Recovery. It was a real pain...)


However, if someday I have to perform the more drastic factory reset, will that still be possible? Does it still contain the data needed to return all the way back to Windows 8?

Note:
When performing the clean install, I only formatted the C:-drive, NOT the D:-drive.(the 'recovery' partition which contains standard drivers and applications which were pre-installed)
However no real sign of Windows 8 components inside the recovery partition
(maybe because I don't know how a factory reset is performed exactly. Where does it store the data of the Windows 8 OS?)

So, theoretically I should still be able to perform a factory reset, right?

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Message 2 of 9

Re: Can you still perform a factory reset after a clean install?

Hi SoNar83

 

Greetings.

 

You should still be able to launch One Key Recovery (page23 of the user guide here).

Using the Novo button to turn on the machine, would show Novo Menu for System Recovery.

z50-70 novokey.JPG

 

Assuming that the hidden Recovery partition is untouched ( no repartitioning done to corrupt the location and image) which using disk management option can allow you to check further similar to this discussion

 

The same Recovery Partition holds the factory restore image for the model that would reimage the machine back to how it was from out of the box with Windows 8 image and applications on the C: drive.

 

Related reference :

Understanding hard drive partitions on Lenovo systems with Microsoft Windows 7 and Windows 8

 

Before attempting the option, it would be best to back up your files as needed.

 

Update us how it goes best for you.

 

Regards



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SoNar83
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Message 3 of 9

Re: Can you still perform a factory reset after a clean install?

Well, I have 7 partitions in total on the disk, but somehow, the other partitions are all empty.

(I'm sorry it's in Dutch, but at the right it says there's 100% free space on them)
Knipsel.PNG

I don't know why, but I can remember them showing up during the clean install process, but I didn't touch them. As I said I only formatted the C:- partition. So why are they empty? That's bad news, right?

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Message 4 of 9

Re: Can you still perform a factory reset after a clean install?

Hi SoNar83,

 

Greetings.

 

As I am still optimistic seeing partition 8 still showing as Recovery image location for the OKR, you can try to check it directly using third party tools or what I would do is :

 

Open folder option to show hidden files folders and drives initially

Press Win key + X and click on CMD / Command with admin privilege

On the black CMD box type :

 

diskpart
list disk
sel disk 0
list part
sel part 8
assign

 

This would now have assigned a letter to that hidden partition 8 when you open This PC so that you can open it.

OKR folder would verify that the image is still available.

 

(to remove the assigned letter and keep it hidden and untouched is to type the same commands but instead of assign just type remove

 

You can give it a try and update us later.

 

Regards



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SoNar83
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Message 5 of 9

Re: Can you still perform a factory reset after a clean install?

Sorry for the delay.

So I did as you said and after sel disk 0 and list part I got the following:

Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 Recovery 1000 MB 1024 KB
Partition 2 System 260 MB 1001 MB
Partition 3 OEM 1000 MB 1261 MB
Partition 4 Reserved 128 MB 2261 MB
Partition 5 Primary 888 GB 2389 MB
Partition 6 Recovery 785 MB 890 GB
Partition 7 Primary 25 GB 891 GB
Partition 8 Recovery 15 GB 916 GB

Remarkably, it is Partition 4 which does not appear in the Disk Management screen. There was no partition with 128MB in the list, as you can see in my screenshot.
Partition 8 is the D: drive.
(even after completing your set of commands, it didn't show up in Disk Management, or afterwards repeating it with "remove")

Do I have to do the same thing again, but then select partition 4 in stead?

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Message 6 of 9

Re: Can you still perform a factory reset after a clean install?

Hi SoNar83,

 

Once you have assigned a letter to a partition, on "This PC" (previously My Computer) with the folder options set to show hidden files.

 

You may assign a letter to each partition to check but I doubt an image would fit with just 128MB of part 4.

Either part 6 and 8 can be a likely candidate.

 

As a reference :

In a UEFI/GPT lenovo machine, this is the usual layout of the partitions:

 

1.) WINRE_DRV 1000MB OEM - this is the Windows Recovery Environment - this has it's own interface / it doesn't need the 7th partition to operate
2.) SYSTEM_DRV 260MB System - check this thread

3.) LRS_ESP 1000MB OEM- The third partition is the EFI System partition which is used for data storage for the Extensible Firmware Interface (EFI) interface
4.) (blank) 128MB MSR - The fourth partition is the Microsoft Reserved Partitionwhich is also used for data storage for the Globally Unique Identifier (GUID).
5.) Windows8_OS 884.2GB Primary - Windows 8 OS
6.) LENOVO 25GB Primary - this contains the Application and Drivers that are preloaded on the OS (the drivers listed on this folder are also available on the lenovo website)
7.) PBR_DRV 20GB OEM - this is your recovery partition - you will need to press theOne Key Recovery button to activate this partition.

 

Regards



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SoNar83
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Posts: 16
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Message 7 of 9

Re: Can you still perform a factory reset after a clean install?

You were right. I assigned R to the partition and will you look at that!

The 8th partition actually has used space on it, with inside it 2 folders regarding a OneKey Recovery backup.

Knipsel.PNG

 

Sr Support Specialist
Posts: 8,682
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Message 8 of 9

Re: Can you still perform a factory reset after a clean install?

Hi SoNar83

 

We can safely assume that the One Key Recovery image is still on your harddrive.

You may now remove the assigned letter to hide it thus preventing access or repartition that may cause coruuption of the OKR function.

 

Regards



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SoNar83
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Registered: ‎08-11-2015
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Message 9 of 9

Re: Can you still perform a factory reset after a clean install?

Done!

I guess the question has been fully answered now! Thank you for your support spidey!

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