Saturday, November 21, 2009

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Modify the Boot Manager configuration In Windows 7 And Windows Vista To Setup Multi Boot

The Windows Boot Manager is responsible for loading Vista or Windows Seven, and, optionally, booting any other operating systems you may have installed.

The Boot Manager in both Windows XP and 2000 stored its configuration in a tiny, easily editable file called boot.ini in the root folder of your C: drive, but in Windows Seven and Vista, this file is no longer used. If you install Windows 7 or Vista on an XP system, and then open the boot.ini file left behind, you’ll see this message:
;Warning: Boot.ini is used on Windows XP and earlier operating systems.
;Warning: Use BCDEDIT.exe to modify Windows Vista (or windows 7) boot options.
The BCDEdit (bcdedit.exe) tool that comes with Windows 7 and Vista is a command-linetool, and isn’t exactly user-friendly. Open a Command Prompt window (In administrator mode), type bcdedit and press Enter, and you’ll see output that looks something like this:

Windows Boot Manager
identifier {bootmgr}
device partition=C:
description Windows Boot Manager
locale en-US
inherit {globalsettings}
default {default}
displayorder {ntldr}
{default}
toolsdisplayorder {memdiag}
timeout 3

Windows Legacy OS Loader
identifier {ntldr}
device partition=C:
path \ntldr
description Earlier version of Windows

Windows Boot Loader
identifier {default}
device partition=D:
path \Windows\system32\winload.exe
description Microsoft Windows Vista
locale en-US
inherit {bootloadersettings}
osdevice partition=D:
systemroot \Windows
resumeobject {70c7d34d-b6b4-12db-cc71-d30cdb1ce261}
nx OptIn
detecthal Yes

What a mess. In short, the first section describes the menu you see when you first boot; the second section here—Windows Legacy OS Loader—describes the older version of Windows (XP); and finally, the third section—Windows Boot Loader—describes your new Windows Seven or Vista installation. If you type bcdedit /? at the prompt, you’ll see a bunch of command-line parameters you can use to add or remove entries, choose a new default (the OS that’s loaded if you don’t choose one before the timer runs out), or run a variety of debugging tools.

But if all you want to do is choose a default and maybe change the timeout, there’s a better tool. Open your Start menu, type msconfig in the Search box and press Enter to open the System Configuration window, and choose the Boot tab as shown in figure below.

Figure: The Boot tab of the System Configuration tool provides most of the features of BCDEdit in a much more pleasant interface
Here, the easy options are truly self-evident, and the advanced options are at least accessible. On the right, you can adjust the Timeout from its default of 30 seconds; type 5 here, and you’ll instantly shave off 25 seconds from your unattended boot time. (Don’t use a value so small that you won’t have time to change it, lest you set an inoperable installation as the default and have no way to get around it.).

To choose the default OS, select it in the list and click Set as default. When you’re done, click OK, and then restart Windows to see how your new settings work.

Of operating systems and filesystems When setting up a dual-boot system for day-to-day use, you’ll need to consider the matter of sharing files between your operating systems.

In order to share files between operating systems, both partitions must use filesystems supported by at least one OS. For instance, if you have a dualboot setup with both Windows seven or Vista and Windows 98, you’ll be able to see both drives while you’re in Windows Seven Or Vista, but you’ll only be able to see the 98 drive while 98 is running. (Although Windows Seven And Vista can read drives formatted with the FAT32 filesystem, it can’t be installed on one.).

Now, if both your partitions use the NTFS filesystem—which is what you’d likely get if you set up a dual-boot system with Windows Seven or Vista and XP—you also may have ownership problems to contend with.  Every file and folder on your PC has an “owner,” a user tied to a specific account on your PC. If, for instance, you create a file in Windows XP and then attempt to modify it in Vista or windows 7, you may be denied permission until you “take ownership,”.

And in regards to protecting your data, encryption is also effective at preventing an intruder from reading your files by installing a second operating system on your PC.

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About bench3 -

Haja Peer Mohamed H, Software Engineer by profession, Author, Founder and CEO of "bench3" you can connect with me on Twitter , Facebook and also onGoogle+

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