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Windows 7: What's on that 100MB partition? Can I delete it?

18 Feb 2010   #21

Win 7 Home Premium (OEM) - Install date: 02-2010
 
 

Windows 7 put this partition on another HDD from that which I was installing Windows 7 on. When I unplugged that HDD to see how Windows responded, it booted my old XP installation instead. When I plugged the drives back in, XP booted again. I was not warned about this partition going on my other drives. The fact that you can install in a pre-partiioned space without out it, proves it's lack of necessity. It makes me sick!

My System SpecsSystem Spec
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18 Feb 2010   #22

Windows 7 Ultimate 32 bit
 
 

Good thread with good information. Thanks all; I learned.
My System SpecsSystem Spec
24 Sep 2010   #23

Windows 7 Ultimate 64bit
 
 

I don't see any mention that by removing that 100MB partition it would be creating an alignment issue, which would effect performance, and cause some SSD problems.

Use Argus Monitor to chek your disk alignments.
My System SpecsSystem Spec
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02 Oct 2010   #24

Windows 7 Home Premium x64
 
 
will it consolidate the fragments?

This topic is closest to my issue. My Windows 7 Disk Defragmenter will NOT properly analyze NOR defragment (consolidate) my 100MB partition (name is SYSTEM). Volumes C: and D: do well with Defragmenter.
From what I have been picking up it might be due to the code on it (system, active, primary). The defragmentation percentage is now 14%. Should I be concerned?

My System SpecsSystem Spec
02 Oct 2010   #25
Microsoft MVP

W 7 64-bit Ultimate
 
 

Quote   Quote: Originally Posted by erniesparks View Post
This topic is closest to my issue. My Windows 7 Disk Defragmenter will NOT properly analyze NOR defragment (consolidate) my 100MB partition (name is SYSTEM). Volumes C: and D: do well with Defragmenter.
From what I have been picking up it might be due to the code on it (system, active, primary). The defragmentation percentage is now 14%. Should I be concerned?



Hello erniesparks, welcome to Seven Forums!



Just leave that partition alone, if you mess with it Windows may cease to boot properly.
My System SpecsSystem Spec
02 Oct 2010   #26

Windows 7 Home Premium x64
 
 

Hi, BFK. Thanks for your greeting.

I had already made up my mind to avoid messing with anything coded as "SYSTEM". It is just that I am used to running periodic defragmentation runs (like under Windows XP) and wondered whether I should get another defrag tool (or something). The real live issue is whether it might later become an I/O tax, or (hopefully) be recognized as just an ugly pimple on a Windows 7 built computer system. I don't need those 100MB back.

Here are my hard disk stats (from Disk Management):

disk 0 partition 1 SYSTEM simple basic NTFS healthy (system, active, primary partition) 100 MB 70 MB 70% No 0%

disk 0 partition 2 HP (C: simple basic NTFS healthy (boot, page file, crash dump, primary partition) 919.90 GB 657.03 GB 71% No 0%

disk 0 partition 3 FACTORY_IMAGE (D: simple basic NTFS healthy (primary partition) 11.32 GB 1.63 GB 14% No 0%

This disk has plenty of free space. SYSTEM partition is small in size and maybe that is why nothing happens when I try to analyze or defragment it.

Thank you all for letting me sound off about this disagreeable sight. Ernie
My System SpecsSystem Spec
02 Oct 2010   #27
Microsoft MVP

W 7 64-bit Ultimate
 
 

Quote   Quote: Originally Posted by erniesparks View Post



Thank you all for letting me sound off about this disagreeable sight. Ernie
Hello Ernie.

There is an option if you prefer; have a look at Option Two in the first tutorial below and the general info in the second tutorial at these links below; though there's nothing wrong at all leaving the "System, Reserved" partition intact if you desire, just some knowledge you may be interested in.


Partition Wizard : Use the Bootable CD

Startup Repair - Run 3 Separate Times
My System SpecsSystem Spec
02 Oct 2010   #28

Windows 7 Home Premium x64
 
 

Interesting! Ernie
My System SpecsSystem Spec
15 Oct 2010   #29

Windows XP Professional SP3 32bit
 
 

HI!
I was just wondering, cause there is a lot of confusing info in this topic, if I could delete this partition and perform a low-level format on my disks using a couple of programs of hirens boot cd.
My win 7 broke down recently and I just formatted the second disk and put XP on it, cause I don't have time to deal with Windows 7 problems right now... So I want to keep XP for now and reinstall it after the low level format of the disks... So my question is...can I mess with the partition if I plan on reinstalling the OS?

Thanks for any response. =)
My System SpecsSystem Spec
15 Oct 2010   #30
Microsoft MVP

 

Unless you really need the 100mb, then I'd accept the SysReserved partition by letting the Windows 7 installer partition and format the wiped HD. It's a nice convenience to have the Repair console available on the F8 Advanced Boot Tools menu instead of having to boot the DVD Repair console or Repair CD.

If you don't want it, then just partition with another tool like free Partiiton Wizard bootable CD, which will also wipe your HD for you.
My System SpecsSystem Spec
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 What's on that 100MB partition? Can I delete it?





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