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Windows 7: Can't install windows 7 (Windows cannot be installed to disk)

02 Aug 2013   #1
Megapac

Windows 8 64bit
 
 
Can't install windows 7 (Windows cannot be installed to disk)

Hello everyone I have an issue downgrading from windows 8 to windows 7

My laptop doesn't have dvd-rom so I'm installing from USB stick.
I put windows 7 files following this tutorial USB Windows 7 Installation Key Drive - Create

Then I went to UEFI and disabled boot secure. After I enter installation it doesn't let me choose disk where to install windows files. It says Windows cannot be installed to disk...



I have formatted partition 4 so I'm not able to boot windows 8 now...
Any suggestions?


My System SpecsSystem Spec
.
02 Aug 2013   #2
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

All data on internal harddisk may be deleted?
My System SpecsSystem Spec
02 Aug 2013   #3
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Command Prompt at Startup option ONE. So enter "command prompt". In command prompt:
Code:
diskpart
list  disk
exit
What drive number is your internal disk (look at the size in the output)?
My System SpecsSystem Spec
.

02 Aug 2013   #4
Megapac

Windows 8 64bit
 
 

Disk 0 - 698 GB (HDD)
Disk 1 - 14 GB (USB Flash)
My System SpecsSystem Spec
02 Aug 2013   #5
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Megapac View Post
Hello everyone I have an issue downgrading from windows 8 to windows 7

My laptop doesn't have dvd-rom so I'm installing from USB stick.
I put windows 7 files following this tutorial USB Windows 7 Installation Key Drive - Create

Then I went to UEFI and disabled boot secure. After I enter installation it doesn't let me choose disk where to install windows files. It says Windows cannot be installed to disk...



I have formatted partition 4 so I'm not able to boot windows 8 now...
Any suggestions?
Partition 1-3: very small... not really important for win7 and data.
Partition 4: allready formatted... so no data anymore.
Partition 5: Recover stuff. I think for going to "factory install". Read manual and try "restore factory settings" . Works? If it doesn't work... no important data is on internal disk anymore, am I right?
My System SpecsSystem Spec
02 Aug 2013   #6
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Megapac View Post
Disk 0 - 698 GB (HDD)
Disk 1 - 14 GB (USB Flash)
If internal harddisk may be cleaned totally (ALL DATA is gone afterwards!):
Boot again to "command prompt" as explained before.

Code:
diskpart
select  disk  0
clean
convert  mbr
exit
Does that work?
My System SpecsSystem Spec
02 Aug 2013   #7
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

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
02 Aug 2013   #8
Megapac

Windows 8 64bit
 
 

Can't find where to restore factory settings.

And yes,no important data is on hdd.
My System SpecsSystem Spec
02 Aug 2013   #9
Megapac

Windows 8 64bit
 
 

Quote:
diskpart
select disk 0
clean
convert mbr
exit
Did this,now it says Setup was unable to create a new system partition or locate an existing system partition.
My System SpecsSystem Spec
02 Aug 2013   #10
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Megapac View Post
Quote:
diskpart
select disk 0
clean
convert mbr
exit
Did this,now it says Setup was unable to create a new system partition or locate an existing system partition.
Did clean succeed succesfully?
did convert mbr succeed successfully?
My System SpecsSystem Spec
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 Can't install windows 7 (Windows cannot be installed to disk)




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