The official stance on this is that SLP keys are not needed when the system is installed (or re-installed, or recovered) from an official recovery media from the PC manufacturer: -US/c1b4952d-db3d-4e1f-8e92-5e84b80e4395/preserving-oem-preactivation-when-reinstalling-windows-7?forum=w7itproinstall
FULL Windows 7-x64 HP OEM RECOVERY
The Dimension 5100 was sold by Dell with only Windows XP and maybe in some cases Windows Vista. Thus Dell have only placed the markers for Windows XP and possibly Windows Vista in the system BIOS. They have not placed the Windows 7 markers in the BIOS and the activation mechanism will therefore sees an invalid BIOS and hence will not activate. See notes on ineligible systems: -clean-install-of-windows/microsoft-product-activation/the-activation-backup-and-recovery-program-windows-vista-7-version/#Ineligible
So now i have setup 2 ntfs partitions and am in the recovery. But how can i Dsim windows 8.1 to the disk? Or should i use imagex.exe which i can download somewhere.And thank you for your great and fast support
I did not have the original OEM ISO but was able to install Windows on my new 4TB drive by making a backup of my old 1TB MBR drive using a windows recovery CD and a backup on my external drive. Once I converted the new 4tb drive to GPT, I could not use the recovery CD to get to the recovery dos commands to make a bootable USB key. I had to put the old 1TB drive back in, then boot into the recovery CD, then make the USB boot key. Then, I swapped back in the 4TB GPT drive, and it all worked!
Thanks a lot. I successfully boot to windows on GPT disk with this method.But I want to know how to use grub2 to boot windows directly from gpt disk, without the need to plug usb drive everytime.
Another reliable way to unhide recovery partition is taking advantage of AOMEI Partition Assistant, which is a powerful disk partitioning software for Windows users, and fully supports Windows 11, 10, 8, 8.1, 7, Vista, XP, all 32-bit and 64-bit editions included. This software offers many advanced functions to manage hard disk, including hide/unhide, extend, resize, format, check, delete partitions, and NTFS to FAT32 converter, migrate OS to SSD, convert disk between MBR and GPT without losing data, and more.
With the help of AOMEI Partition Assistant, you will find unhide recovery partition has been successfully and the recovery partition is visible in File Explorer. Please note that do not delete and format this partition to prevent from stucking in the unbootable situations, or you can hide partition. For server users, the AOMEI Partition Assistant Server is more suitable for you with all advanced features, like dynamic disks and dynamic volumes management, convert primary to logical and vice versa, etc. 2ff7e9595c
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