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Beim Recoveryversuch erscheint die Meldung „Unable to lock the disk. Boot your computer from a Lunix- based bootable media, and then try again“

Und nun ? Ich habe das Acronis Boot Medium auf einem Stick, die Backup Datei auf einer exte4nen Festplatte.

Ich habe ja von dem Bootmedium aus gebootet.

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When trying to recover, the message "Unable to lock the disk. Boot your computer from a Lunix- based bootable media, and then try again".

And now ? I have the Acronis boot media on a stick, the backup file on an external hard drive.

I have booted from the boot media.

 

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Welcome to these public User Forums.

The 'unable to lock the disk' message normally indicates that Windows thinks the disk is still in use via flags on the disk.  This can occur if the system is using Windows Fast Start and was shutdown prior to attempting the recovery, but was put into a hybrid sleep state similar to hibernation.

The methods to avoid this issue are as follows:

Force the system to do a full shutdown by pressing / holding a Shift key while clicking on 'Shutdown'.

Use the 'Add new disk' option from the Acronis Tools menu when booted from the rescue media to wipe the target drive for the recovery operation, so ensuring that there can be no 'in use' flags found.

Note: other users have reported that continuing with the recovery / retrying it after getting the lock message has allowed them to proceed and do a successful recovery without needing to create and use Linux based rescue media.
The Linux based media may not correctly detect any drives using RAID or some NVMe drives or if BitLocker is involved!

I actually managed to perform the recovery after multiple attempts. But then, to my disappointment, I found that the problem I had before, that I could not start Windows, still exists. I always thought that a backup of a working system would give me security and after a recovery I would have a working system again. Doesn't a back-up backup the entire hard drive including the boot sector?

If you have done a full disk recovery then all disk data should have been restored as it was when the backup was created.  This is one reason why I will use the 'Add new disk' option to initialise the target disk and wipe all its original content when doing a restore.

If the full disk was restored then the Windows start issue may have a different cause such as BIOS settings, memory, power etc.

One method of testing is to boot the PC from a Linux Live DVD to show that the PC is still fully capable of running a valid OS!  I typically use a Ubuntu Live DVD.  I used this method recently when working on an older MSI laptop that gave me a black screen when upgraded to Windows 10 but which worked fine on Ubuntu 20.04 LTS.  I have now installed the latter on that laptop because there were no display drivers for Windows 10 for it!

Thank you very much ! I repeated everything again, this time with the 'Add new disk' option and it worked ! The PC runs again as at the time of the backup.

That is great news! Well done for persevering!

Hello again,

After having several problems with my PC again, I wanted to restore a back-up. I pressed the Shift key when shutting down the computer as suggested. Now, however, the message "Unable to lock the disk......." still appeared again when starting from the boot medium and trying to "Add new drive" and "Initialise drive in GPT mode" with the Acronis tool.
The whole thing worked last time, but not this time. Now I am at a loss. I would be very happy if you could help me again.

See webpage: How does Windows locking down the drive for Fast Startup work?

One option to try here is to run CHKDSK C: /F before again trying to do a full shutdown to boot from Acronis rescue media.

Note: If you try to run CHKDSK from within Windows, then it will want to schedule this to be performed on a restart.

Steve Smith wrote:

<<<<<snip>>>>

Note: other users have reported that continuing with the recovery / retrying it after getting the lock message has allowed them to proceed and do a successful recovery without needing to create and use Linux based rescue media.
The Linux based media may not correctly detect any drives using RAID or some NVMe drives or if BitLocker is involved!

I have had this issue from time to time, and found that ignoring the message ultimately resulted in the recovery completing successfully.  Had this happen last week when I upgraded the M.2 drive on the PC I am writing this reply. Not sure why the recovery media thought that it could not lock the drive as I always do a full shutdown. I do not have quick boot activated. As far as I can remember I have never had to resort to the Linux recovery media.

Ian

Thank you for your answers. It also happened to me that it suddenly worked after all. But then I had a completely different problem, which was probably my own fault. Somehow I had deleted and initiated my hard drive and no longer had a boot section, and then nothing worked. I now took the PC to a repair shop because I'm a layman and don't know anything about such things.