View Full Version : Windows 7 Installation

17-03-2010, 05:12 PM
I have recently wiped Win7 RC edition from my fairly new PC, and started off afresh with Win 7 Home Premium. No problems and it installed OK. However, when Win7 installs, it creates a 100Mb initial file which I understand was principally for Bit Locker encryption( Home Premium does not have this) There seems to be a fair amount of dialogue going on the web as to whether you really need this file, or that Microsoft is creating a partition without your permission. Microsoft states that they do this for a systems back up/ recovery.
There are several hacks on line about reinstalling Win7 and during the process going to the command line and entering a proceedure which is supposed to wipe out said file and then allows you to re install on a single partition.
This I have attempted to do several times without success as the command structure stops about half way and doesnt allow you to proceed with cleaning Disc O.
I am really wondering if the effort has any real advantages to your system.
1. Its only a 100Mb file.
2. I cant see that it gobbles up any worthwhile space on a large Hard Drive( I have a Samsung 1Tb, 7200 rpm, 32 Mb buffer.
I would appreciate all comments and advice, I am beginning to feel ita all a storm in a tea cup.

17-03-2010, 05:24 PM
Yea for 100mb it's not really worth the time or the effort to try and get rid of it.

17-03-2010, 05:57 PM
Win7 installs, it creates a 100Mb initial file

Microsoft is creating a partition without your permission.



They do lots of things without your permission.
I'd ignore it, buy another 2TB drive..........

17-03-2010, 06:51 PM
That partition is there for a reason - delete it and you will be asking for trouble.

From another well known forum:
The 100mb System Reserved partition is valuable not only because it contains the MBR, but also makes the same Repair console available on the Windows 7 DVD and Repair CD available by tapping F8 during Windows bootup. if you remove that partition - and it is possible
you will need to boot into the Windows 7 DVD Repair console to run Startup Repair 3 separate times with reboots to rewrite the MBR to the Windows 7 partition.Be sure that Windows 7 partition is marked Active first

Leave it alone, removing it will cause more trouble than the 100MB it takes up.

Speedy Gonzales
17-03-2010, 07:12 PM
The only way you'll going to stop it from making the partition, is if you make the partitions bigger. So, there wont be enough space left for setup to create it

17-03-2010, 07:30 PM
Add to my above post #4 -- Gotta love playing esp when you have a clone to put it back :p remove that partition (http://www.imagef1.net.nz/files/P1000999_(Large).JPG) and congratulations you have just broken your windows 7 (http://www.imagef1.net.nz/files/P1010001_(Large).JPG) ( bottom Line) --- Now to fix it :nerd:

17-03-2010, 08:14 PM
Just in case anyones interested - Bit of "fluffing about to fix it"


Boot into the W7 DVD, get to the repair options ( forgot to take pictures, BUT) once that partition is deleted the OS is not detected like it is in the picture This here (http://www.computingunleashed.com/wp-content/uploads/2009/12/windows-7-install-1.jpg) - so move onto the Repair options (http://www.intowindows.com/wp-content/uploads/2009/12/systemrecoverytools.jpg) Startup repair didn't fix it even after 5 tries :crying

SO Select Command prompt:

Type your "dvd Drive Letter" in command prompt, press ENTER;

Now if your Windows 7 is installed in C drive, type "copy bootmgr c:\" without codes, press ENTER;

After successful copy type "exit" without codes, press ENTER;

Example of Commands (http://www.imagef1.net.nz/files/P1010003_(Large).JPG)

Reboot computer back into the W7 DVD, This time select " Startup Repair", let it run through.

Reboot, and remove DVD, all going well after a LOT of hard Drive activity - W7 rebooted. :banana With the smaller partition now empty, resize the OS partition if you want -- Not worth the hassle.

pablo d
18-03-2010, 01:16 PM
It takes over a quarter of a percent of my 40GB boot drive away! Don't think I'll be doing anything about it though.

18-03-2010, 03:11 PM
I have been trying to instal W7 Ultimate X64 to my computer without having any joy. In my searching for problem fixes I came across a method of upgrading Windows RC to RTM and not lose your data. A link to the method is below.


I don't know if it works as I didn't try it.
Just a thought.

Speedy Gonzales
18-03-2010, 03:25 PM
But (http://social.technet.microsoft.com/Forums/en-US/w7itproinstall/thread/911607a4-cd0c-4613-93d2-10ca45948e92). I would do a clean install. As <- that says you may also carry bugs across (that RC has got)

18-03-2010, 04:29 PM
100Mb, is this really a big deal?

This partition is not just for BitLocker as you point out, but for the Windows Recovery Environment. If your system is not bootable for some reason there is a very good chance that WinRE will be able to automatically fix your PC and get it booting again

Personally for the sake of losing 100Mb of space, I'd rather have WinRE there than having to go and find my Windows 7 media

18-03-2010, 05:46 PM
Thanks guys for your advice. As expected all the advice is to leave the100Mb file alone , and I will. There are more worthwhile things to worry about.
One comment about running 64 bit, quite a few Free software( as advised by PC World ) are not available in 64 bit except as a paid version, a great pity really. Hope that changes in time.