0. Extract the installation package to a folder in the non-system partition (assuming it is win7stp)
1. Right-click and add the "Administrator takes ownership" registry key ( http://bbs.pcbeta.com/thread-371342-1-2.html )
2. Open Explorer, select OrganizationFolder and Search Options"View" tab and deselect "Hide protected operating system files" and "Hidden files and foldersShow hidden files, folders, and drives"
3. Right-click the boot folder under c:, and the administrator takes ownership; then obtain administrator rights for bootmgr
4. Enter the "Registry Editor", search for the bcd00000000 item, select the item after finding it, and click the "File" menuUninstall Hive (this step makes it possible to read, write and replace bcd files)
5. Delete the boot folder and bootmgr file, and copy the bootmgr and bootmgr.efi files, boot, efi and sources folders of the installation package (you do not need to copy the install.wim inside) to the c: drive
6. After restarting, select windows 7 setup[ems]
7. After the installation interface starts, in the next step, click Repair Computer (a dialog box to repair the startup of Vista/7 will appear, click Cancel)
8. Select the command prompt and enter win7stpsources, such as: cd /dd:win7stpsources
9. Enter setup
10. Select "Advanced Custom" during installation to format c: and install to c:
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