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Windows 7: [Downgrade W10 to W7] Windows 7 won't boot

24 Jul 2016   #11

Windows 7 Ultimate x64

Quote   Quote: Originally Posted by Megahertz07 View Post
Did you created a DVD or USB flash factory recovery disk?
If you didn't do it BEFORE wiping the disk.
If your BIOS doesn't have a option to created a DVD or USB flash factory recovery disk, install Win 10 using the Win 10 key that came with the laptop, install the Acer recovery program and then created a DVD or USB flash factory recovery disk.
Once you have the recovery disk, it's safe to clean the disk partitions.

Before I wiped disk, I made a full windows recovery (folder called "WindowsImageBackup" with loads of data, main recovery file has about 30GB and it's .vhdx file). It is saved on other PC. Is that an adequate recovery backup to wipe whole disk, including those small recovery partitions?

My System SpecsSystem Spec
24 Jul 2016   #12

Windows 7 HP 64

A UEFI disk for win 10 has at least 4 partitions:
- One 100MB FAT 32 UEFI partition for the boot loaders
- One 120MB RAW partition MS reserved
- One 30 MB NTFS Windows 10 recovery partition
- One remaining space, NTFS Windows 10 partition
Manufactures also creates a ~30 MB partition that holds a factory recovery system. With this partition you should create DVD's or USB flash disk to recover to factory settings in case your have a disk failure.
I'm not familiar with windows recovery, but if it makes a image of only the Windows 10 partition, you won't be able to restore your system because you also need, at least, the UEFI partition. You should have created a DISK (all partitions) backup.
If you haven't erased the ~30 MB partition that holds the factory recovery system, you should create this disks before erasing all partitions.
My System SpecsSystem Spec
24 Jul 2016   #13

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2

Quote   Quote: Originally Posted by Layback Bear View Post
Did you not read this from post #1
Look at his post history.
My System SpecsSystem Spec

24 Jul 2016   #14

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring

Hi Minjan,
Some OEM comps cannot actually support W7,
as the Bios has been updated to support W10, if there's not a downgrade BIOS update, which there is not for your model, (originally 8.1 but W10 OEM'ed)
I think your going to be out of luck.
I also suspect it does not have downgrade rights, the product key you need for W7 is not the same as the Digital Entitlement key you have for W10, you would need to buy a new one, difficult to come by nowadays.

My System SpecsSystem Spec

 [Downgrade W10 to W7] Windows 7 won't boot

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