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Windows 7: Lack of 100Mb System Reserved

27 Apr 2015   #1
Sergeant Steve

Windows 7 Ultimate x64
Lack of 100Mb System Reserved

I have a brand new SSD that I just installed Windows on using an Ultimate Upgrade Disk and followed the "Clean Install using an Upgrade Disk" tutorial on here, and also the "Relocate Users folders during Windows 7 Installation" tutorial after Windows was actually installed.

According to the first tutorial the Windows install SHOULD have created a system reserved partition since the whole SSD was unallocated space, yet it did not.

Now I DID have Ubuntu installed on another HDD which had a partition marked as Active, and for some reason one of my other drives was also marked as Active, since I reinstalled Windows I have now removed the Ubuntu Partitions and I have now set the other drive that wasn't meant to be Active, as Inactive, and set my "C" drive which is marked as Boot, as Active.

However before I go about reinstalling MORE software (so far just Flash Player and Antivirus software), I would rather format C and reinstall again if it would properly give me the 100Mb System Reserved Partition that is so useful when Windows breaks itself.

So can someone tell me by looking at the provided screenshot of Disk Management whether another fresh install will actually create the 100Mb System Reserved partition that I want on my drive.

Attached Thumbnails
Lack of 100Mb System Reserved-disk-management-screenshot.jpg  
My System SpecsSystem Spec
27 Apr 2015   #2

Windows 7 Pro x64 Windows 10 Pro x64

Your system files got written to Disk 1 because you did not unplug all other drives and it was marked active when you did the install.

You do not need a SR partition.

Re install windows and this time unplug all the other hard drives, if you want a SR partition just delete the drive to unallocated space.
My System SpecsSystem Spec
27 Apr 2015   #3

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

AddRAM's idea will work.

An alternative is to use EasyBCD to copy the system boot files from F to C.

Bootmgr - Move to C:\ with EasyBCD

You can do a Windows install and never have a System Reserved if you want by making a partition on the target drive before beginning the install. I've never had a System Reserved and my system files are entirely on C.
My System SpecsSystem Spec

27 Apr 2015   #4

Windows 7 Pro x64 Windows 10 Pro x64

Same here, I always make an install partition, but it sounds like he really wants to have a SR partition.

Unless you are going to use bitlocker (bad idea) you don`t need a SR partition.

Attached Thumbnails
Lack of 100Mb System Reserved-windows-7-install-partition.jpg  
My System SpecsSystem Spec
27 Apr 2015   #5
Sergeant Steve

Windows 7 Ultimate x64

I know that is is not a requirement to have the SR Partition but the last time I installed to a previous SSD I still had Win 7 Pro plugged in which then caused Win 7 Ult to just add a boot entry to the SR Partition on the SR partition that already existed. This caused no end of problems when I then unplugged said drive, and I had to spend ages with the install disk adding the boot files and marking the relevant partition as active etc to get it to work properly.

I've also had no end of bother with that install of Windows until it crashed completely on Friday night with DRIVER_CORRUPTED_EXPOOL then hanging on the next reboot then crashing on every boot with BAD_SYSTEM_CONFIG_INFO after I allowed windows to do a chkdsk on C before boot. Even after running startup repair from the install DVD this was not fixed, and an Experienced IT friend said that unless I manually changed partitions etc then the most likely situation is that HDD Integrity had failed.

This made sense since the SSD itself had crashed out three times, by which I mean it caused windows to hang but left the mouse working along with the Num Lock lights etc. Upon a reboot the SSD would then be missing from the BIOS HDD list and I would have to turn my PC off and leave it without power for a few mins to be able to get the SSD working again.

This and the fact that the Repair your computer option on the DVD did not actually "see" windows and I've had other issues that I've needed the DVD for, it is easier to do a fresh install and ensure it has everything it should have if it were the only drive on the system.

Also disk 0 is not active in the S/S because I marked it as inactive and marked the SSD as active instead, I have since reinstalled so it is Active again. I will make it inactive before I unplug the other drives so the SSD is disk 0, but that will be done tomorrow due to it now being 20 past midnight.
My System SpecsSystem Spec
27 Apr 2015   #6
Microsoft MVP


You didn't need to mark Disk 1 Active because Win7 always places the boot files on the first Primary partition if there is no other OS present. This is why we've always advised to unplug all other hard drives during install, unless you want a Dual Boot with another HD's OS.

Follow the link provided to move the bootmanager to C, swap its cable with Disk0 so that it is in that position and can't have its bootmanager derailed again. Make sure that disk is set first to boot in BIOS setup.

There is no need for a System Reserved partition nor any reason not to have one. Take it or leave it, but don't give either a second thought.

If you have problems with your installs then read over Clean Reinstall Windows 7 which compiles everything that's worked best in tens of thousands of installs we've helped with here. Over 1.4+ million have used that tutorial without a single complaint or return here with problems.

If problems persist then test the SSD using it's included Tech Support for possible RMA which we see often here.

What works best is here for a Dual boot Ubuntu-Win7
My System SpecsSystem Spec

 Lack of 100Mb System Reserved

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