Normally, Win7 only accept upgrade from RC to RTM. It’s sad but it’s true. But
If there is a will, then there is a way
According to here, you can tweek Win7 installation file so it can accept upgrade even from Beta 1.
- Mount your Win7 DVD or Image
- Go to your sources folder
- Edit cversion.ini file
- Change minimum client (MinClient) property so it meet your system requirement. Basically, MinClient is Win7 build version. Change it into7000 if you have Win7 Beta version
- Save the file
- Run the installation as ussual
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Just got info from WinSuperSite that you can do full clean install Windows 7 of any edition with just installing Windows 7 Upgrade edition. Here’s how
- Do clean install of windows 7 and make sure no windows 7 pending updates
- Open regedit with administrator rights
- Navigate to HKLM/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/ and Change MediaBootInstall from “1″ to “0″
- Run command prompt w/ administrator rights then type slmgr /rearm , press enter
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If you dont know what is VHD, you can check it here
A Virtual Hard Disk (VHD) is a file formatted to be structurally identical to a physical Hard Disk Drive. It is typically used in various virtualization packages, and can be used to install a wide variety of operating systems (various versions of Microsoft Windows and Linux).[1] The format was created by Connectix which was later acquired by Microsoft for Virtual PC. Since June 2005 Microsoft has made the VHD Image Format Specification available to third parties under the Microsoft Open Specification Promise.[2]
However, There are several ways to mount VHD
1. Using Diskpart
Diskpart is disk utilities that every windows copies has since Windows Vista,CMIIW. You can look here . To mount VHD files using diskpart just follow these steps
- Go to Command prompt w/ administrator privileges
- type diskpart then enter
- type SELECT VDISK FILE=”<full path disk name>” then enter
- type ATTACH VDISK then enter
You can also create small script to execute that.
- Run notepad
- Type SELECT VDISK FILE=”<full path disk name>” then enter
- type ATTACH VDISK then enter
- Save and Close that script as attach-vhd.bat for example
- Go to Command prompt w/ administrator privileges
- type diskpart /s attach-vhd.bat
But that method, gives me DiskPart was unable to process the parameters. if I run it directly
2. Using Computer Management
This almost the easiest way, by using Computer management Console in Administrative Tools
- Do right Click and Choose Manage
- Computer management Console will appear
- Choose disk management items
- Go to Action menu, then choose Attach VHD
- Choose your vhd files
3. Using VHDMount
Recently, I found this method is the easist way to mount. Go to here . Download file called VHDMount.exe . Run it. It will register VHDMount to Windows Registry so you can mount VHD files only by double click on it.
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Very easy to boot and install windows 7 from VHD files. Additional info about VHD, you can take a look here
A Virtual Hard Disk (VHD) is a file formatted to be structurally identical to a physical Hard Disk Drive. It is typically used in various virtualization packages, and can be used to install a wide variety of operating systems (various versions of Microsoft Windows and Linux).[1] The format was created by Connectix which was later acquired by Microsoft for Virtual PC. Since June 2005 Microsoft has made the VHD Image Format Specification available to third parties under the Microsoft Open Specification Promise.[2]
Start from Windows 7 and Windows 2008 R2, VHD natively support by Microsoft. Even more, we can boot into Windows 7 or Windows 2008 R2 from VHD file. There’s two version VHD disk type,
- Dynamically expanding
- Fixed Size
Now the best part,
- Create VHD files
- Go to Computer Management
- Click on Action and Choose Create VHD files
- Choose VHD Location
- Choose Virtual hard disk format. Fixed size is recommended by Microsoft
- Mount the VHD into Z: for example
- Install Windows 7
- Load your Windows 7 disk or Windows 7 Image into drives. For example drive i:
- run command prompt with administrator rights
- type this command imagex /apply i:\sources\install.win 5 h: (in this example 5 is the windows 7 edition which windows 7 ultimate. To get the list type imagex /info i:\sources\install.wim
- wait the process
- Install into MBR
- run command prompt with administrator rights
- type bcdboot h:\windows
After this, you’ll get another booting option which can boot your OS from VHD files. Note, this VHD files only can be applied into Windows 7, Windows 2008 R2 forwards.
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