This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Is there a possibility to install windows 7 (clean install) without making a extra (hidden) partition "system reserved" from 100mb?
or how can I delete this partition after install ?
Why is it for?
I have the meaning that this slows down my hard drive a little ?
thanks
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Hi Johan G,
Thanks for posting to Getting Ready for Windows 7 .
The 100MB partition is a system partition and contains boot files. Disk Manager will not allow you to remove this partition because removing this partition could cause the system to not boot.
Thanks for posting your question to Getting Ready for Winodws 7 community group.
Regards,
Debbie
Microsoft Answers Support Engineer
Visit our Microsoft Answers Feedback Forumand let us know what you think.
Thanks anyway,
i wil try a install with an different harddisk.
Can I move it onto another HDD I need to get rid of that one out of my PC!
I don't want to take one side or the other on this issue, but I am curious why some are so adamant about getting rid of the 100 MB Windows 7 system reserved partition.
Setting aside the case made by CaptPat for now and sticking to workstations and home PC's, I agree with Fertz and KJBlake on the space issue. Percentage-wise it's not enough (< 1%) for me to spend time on--especially given the importance of the partition and effort required to get rid of it. Darius Reager has a different case for needing to remove it. I can't think of any good reason for MS customers to encrypt this hidden partition that contains no user data. Perhaps it's a policy requirement? Sometimes policy is difficult to change. Of course that doesn't make it correct...
Does it really boil down to some not wanting to change the old way of doing things and/or preferring to manage partitioning and boot files for the sake of retaining control? That's good enough reason IMO, but keep in mind that enhancing support for this flexibility during install could have a price tag in the millions for a product as big and widely-distributed as Windows. I'd mainly like to know if there are other reasons we might find compelling and just haven't thought of yet.
Though I have not actually dug into it and could be wrong, I think the only way you are going to be able to get rid of the 100MB is to repartition everything.
I did send in a a report about this being a serious flaw during RC testing, but MS felt it was necessary to have it without an explanation why. I put in that there needed to be an option for the user/installer to chose where and if this was done.
I was not trying to do an array like, but in order to prevent W7 from making this partition I had to disconnect my other two drives when I did a clean install of RTM. To my knowledge this 100MB partition is only made when you have more than 1 HDD. I think there was also a post about it happening when a drive had more than 1 partition, but I am not positive about it.
I do know when I reformatted the drive it was on during RC testing that I lost my boot manager and had to reinstall W7 RC again.
