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markgoldin-3750 avatar image
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markgoldin-3750 asked LimitlessTechnology-2700 answered

Restore previous OS

I accidentally installed W2022 Server over my W11. Is it possible to go back? Or at least recover files?

Thanks

windows-11
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LimitlessTechnology-2700 avatar image
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LimitlessTechnology-2700 answered

Hi there,

If you have clean installed the PC with deleting all the partitions then recovering your files might be a lost dream. You can use any third party recovery tool and check if you can pull out your files.

If you have updated by other means then in the PC if the server OS is working fine then try checking your Windows.old folder . If you see your files there try copying them to an USB and then either clean install the PC to your previous version or check in recovery section that if it is possible to go back to your older state of PC.



--If the reply is helpful, please Upvote and Accept it as an answer--

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markgoldin-3750 avatar image
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markgoldin-3750 answered MotoX80 commented

I ran setup.exe from ISO files.
I dont want to delete partitions, I want to go back to prev.OS.

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Check the documentation that came with the PC. See if there is any option to do a factory reset.

Unless you took a full system backup, your previous OS is gone. You'll have to do a reinstall of some kind.

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markgoldin-3750 avatar image
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markgoldin-3750 answered DSPatrick edited

So, the only way go back is to reinstall the OS and get files from Windows.old?

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AndreasBaumgarten avatar image
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AndreasBaumgarten answered markgoldin-3750 commented

Windows Server 2022 is installed successfully?
If so:

  1. Login to Windows Server 2022 and copy all your data files on an USB drive (stick or hd).
    Or use OneDrive any other cloud storage to backup your files.

  2. Create a List of all installed applications and verify you got the installation media of the applications (including licenses/keys)

  3. Install a "fresh" Windows 11 and install your applications again.

  4. Restore your backup data


(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten

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  1. I need files from my old system. Looks like I can get them from Windows.old.

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MotoX80 avatar image
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MotoX80 answered markgoldin-3750 commented

If you have a Windows.old folder, see if the info in this site works for you. It might not be available since you installed a Server OS.

https://www.ubackup.com/windows-10/restore-from-windows.old.html

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For me under Recovery it shows Advanced with Restart button

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I was referring to this.

146979-capture.jpg


But that all depends on how you upgraded/installed Server 2022. It is not a normal "upgrade path". You will probably have to follow @AndreasBaumgarten's advice.


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capture.jpg (51.2 KiB)

It doesn't show Go back to ...

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Docs-4663 avatar image
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Docs-4663 answered

During an upgrade, windows refresh, and custom install windows.old are typically created.

During a clean install where all partitions are deleted making an unallocated drive there is no windows.old.




Some method to see if there are any recoverable files:

1) Boot Ubuntu /Linux
2) Use Partition recovery software

Testdisk
MiniTool
Gparted
DiskGenius
etc.

https://www.handyrecovery.com/best-partition-recovery-software/




If you have Windows.old see this link:

https://www.tenforums.com/tutorials/148005-how-restore-files-windows-old-folder-windows-10-a.html


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