Aller au contenu principal

Message An operating system wasn't found - After Acronis restore to new hard drive

Thread needs solution

I have a windows 10 desktop that started having issues with the C drive. I make regular Acronis backups so decided that the new hard drive would be a SDD drive. I installed the ssd drive without issues. I placed my Acronis recovery DVD in the optical drive and correctly found my backup. I selected my new unallocated SSD and did restore of the C drive which looks to include the C drive, Recovery and MBR.

It reported that it was complete. I tried to boot and get the no op system found. I did make sure that my new drive was listed as first boot option. I even unplugged my second hard disk but still the same no op message.

Any help would be appreciated.

0 Users found this helpful

James, assuming that you still have the original C: drive that you replaced with the new SSD, then I would recommend connecting that original drive to the PC using either a USB adapter or else a USB Dock, then checking what partitions were shown on the original drive?

If you see an EFI System partition on the original drive, then when you did the recovery to the new SSD, the DVD should have been booted in UEFI boot mode and the SSD prepared using GPT partition scheme format, not as MBR.  UEFI boot systems use the Windows Boot Manager for the boot device, not the actual drive make / model.

I am assuming that the new SSD is of the same type of drive as the original drive, i.e. both are SATA drives.  If you have installed a PCIe card type NVMe SSD then this has to use UEFI / GPT when used as an OS boot drive.

KB 59877: Acronis True Image: how to distinguish between UEFI and Legacy BIOS boot modes of Acronis Bootable Media

See KB 61632: Acronis True Image 2019: how to create bootable media
Also KB 61621: Acronis True Image 2019: How to restore your computer with WinPE-based or WinRE-based media

Thanks for the reply, Steve. After I posted this I installed a windows 10 home installation DVD and noticed that windows could not install on the drive and needed to make a change. I clicked ok but didn't notice the partition scheme. I let the windows install proceed to loading files and up to connect to the internet. I powered down, put in my recovery DVD and did another recovery to the ssd. I thought this would work but got the same message on bootup.

I put the original drive in another pc and under Disk Management ->Properties it shows that volume as a Master Boot Record (MBR). I read the info in the two links but unsure what they mean by booting recovery disk in bios mode?

James, modern computers can support two different BIOS modes for booting the OS, these are Legacy using MBR for older machines, and UEFI using GPT for more recent ones.

If your PC supports using UEFI then if you boot the Acronis rescue media in that boot mode (taking the UEFI boot option for the DVD drive) and you recover a backup from a Legacy / MBR system, it will be migrated to use UEFI & GPT and should work just fine.

If you have an older PC than only supports Legacy boot, then the rescue media will boot in that mode too and recovery will put back the drive in MBR format for the partition scheme.

What change did you need to make in order to get Windows 10 to install on your PC?

I'm not sure Steve. So, this afternoon I decided to confirm that the newly purchased SSD drive was functioning ok. I downloaded Ubuntu. I created an ISO image on a USB thumbnail drive. I had zero issues installing the current version of Ubuntu on my ssd/pc. I tried again to restore Acronis and got the same error. I've never, never, never had this kind of issue with Acronis. It has always come through. Question? So this is a pc that used to be on Windows 7 and then migrated to windows 10. Also it is a 2012 Gigabyte machine. Even though I'm really anal about doing backups and validating they are good, I seem to be bad at making individual rescue media for each of my windows machines. I can not recall the version of Acronis on the affected machine. I may have incorrectly thought that recovery disks were backwards compatible? I'm using a recovery disk for another pc that is probably a few years newer. Could that be it?

James, provided your rescue media is for the same or a more recent version of ATI than the one that created your backup image, then there should be no issues here as there is backwards compatibility for ATI versions.

For a 2012 vintage PC, then the rescue media ISO image from your Acronis Account should work fine for you - this uses a small Linux distro (BusyBox) and is pretty much agnostic with regards to hardware.

The key factor for recovery is that your backup image contains all the required partitions from the original OS drive, i.e. the Microsoft System Reserved, OS and Recovery partitions typically for a Legacy / MBR system.

When doing the restore of your backup, this needs to be done as a Disk & Partition restore and at the top Disk selection level.

Please see forum topic: [How to] recover an entire disk backup - and in particular the attached PDF document which shows a step-by-step tutorial for doing this type of recovery / restore.