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Windows 7: Downgrading from windows 8

25 Jun 2013   #1
catblack

windows7
 
 
Downgrading from windows 8

Hi
I am having a spot of trouble downgrading from windows 8 to windows 7
in DISKPART I select the disk to convert to mbr and type convert mbr it comes up
Virtual Disk Service Error:
Anyone got any clues
Thanks in advance


My System SpecsSystem Spec
25 Jun 2013   #2
VistaKing

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
 
 

See if this will help

Downgrade Windows 8 to Windows 7
My System SpecsSystem Spec
25 Jun 2013   #3
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Is this a new PC with Windows 8 Pre-installed?
(Make & Model unknown)

1) Downgrade to Windows 7.
Downgrade Windows 8 to Windows 7
Warning you must have the uEFI/BIOS firmware setting in Step Three set.


2) If Using a USB Pendrive on a PC with a uEFI BIOS.
USB Pendrive need to be formated to FAT32 as in
UEFI Bootable USB Flash Drive - Create in Windows
Take note of Step 11 for Windows 7.
Also you will need to use a USB 2.0 port, as there are no USB 3.0 drivers in Windows 7.
My System SpecsSystem Spec
25 Jun 2013   #4
gregrocker
Microsoft MVP

 

Shouldn't be necessary to convert via Diskpart. During booted UEFI install deleting all partitions should be enough. Then create New and it should include the needed UEFI System partitions.

If not then when Diskpart may be needed is to run Diskpart Clean Command to clear the HD of all boot code which might interfere or be corrupt.

If this doesn't help then test your HD using the maker's HD Diagnostic extended CD scan.
My System SpecsSystem Spec
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 Downgrading from windows 8




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