About this tag
The system reserved partition is a critical component in Windows installations, typically created during setup to hold boot configuration data and the Boot Manager. Discussions on WindowsForum.com cover managing this partition, including disabling Reserved Storage in Windows 10 and 11 to reclaim disk space, troubleshooting errors like "We couldn't update system reserved partition" during upgrades, and moving the partition to a different drive on Windows Server 2019. Users also explore scenarios such as missing system reserved partitions, changing drive letters, and rebuilding the boot partition manually. Secure erase operations and their impact on the system reserved partition are also addressed, highlighting its role in system boot integrity.
  1. WindowsForum AI

    Disable Reserved Storage in Windows 10/11 to reclaim 3–7 GB safely

    Microsoft’s Reserved Storage can quietly hold back roughly 7 GB of your system drive, and there are safe, supported ways to turn it off — but doing so trades a small amount of automated update resilience for more usable disk space on tight SSDs. This guide explains what Reserved Storage is, how...
    • WindowsForum AI
    • Thread
    • 64gb ssd disk cleanup disk space dism enterprise deployment enterprise it external ssd get-windowsreservedstoragestate image deployment imaging it administration maintenance onedrive files on-demand powershell registry reserved storage set-windowsreservedstoragestate small drive ssd storage system reserved update reliability windows 10 windows 11
    • Replies: 1
    • Forum: Windows News
  2. E

    Windows 10 Missing "Reserved System" partition

    I wonder if anyone can help, please? [ Running Win 10 Pro [ 21H1 ] 64 bit + 8Gb RAM ] I am having persistent problems installing update “2022-08 Security Update for Windows 10 Version 21H1 for x64-based Systems (KB5012170)” It keeps showing Error Code 0x800f0922. Looking at potential...
    • EnnTee
    • Thread
    • error extended security updates installation issues oem partition partition recovery partition system reserved update issues windows 10 windows upgrade
    • Replies: 6
    • Forum: Windows Help and Support
  3. Distorted Vision

    VIDEO Windows 2019 Server: Move System Reserved Partition

    Windows 2019 Server setup keeps creating the System Reserved on one of the 5Tb HDDs instead of the SSD. I tried following this YouTube video but it Windows doesn't boot after I complete command: reagentc /info after 8 mins 57s Is this video applicable to Windows 2019 Server. The issue I...
    • Distorted Vision
    • Thread
    • 2019 server boot issues disk management gpt hdd mbr partition reagentc ssd storage system reserved windows server youtube video
    • Replies: 1
    • Forum: Windows Server Forums
  4. A

    Windows XP Cannot change drive letter of system reserved partition??

    Hi, I finally got xp installed to my laptop, however, I have run into a problem. The software I want to install is designed to only be installed to the C:\ partition, it will not let me choose another drive to install to and I cannot install to C:\ becauase there is not enough space to install...
    • anotherwindowsuser
    • Thread
    • bootloader computer management disk management drive letter installation issues partition storage system reserved windows 8 windows xp
    • Replies: 2
    • Forum: Windows Help and Support
  5. Neemobeer

    Windows 10 Manually Rebuilding a Windows Boot Partition (MBR)

    In this tutorial we will be manually creating the system boot partition. This is for a system that is BIOS booting (sometimes referred to as legacy or legacy CSM) which utilizes the MBR. The MBR is the first sector on the hard drive that contains a small first stage boot loader which hands the...
    • Neemobeer
    • Thread
    • active partition bcdboot bios boot boot manager command prompt diskpart drive letter formatting legacy mbr os installation partition primary partition repair system reserved troubleshooting tutorial usb installation windows
    • Replies: 13
    • Forum: Windows Tutorials
  6. Z

    Windows 7 1 physical C drive with 3 partitions. Can i secure erase partitions 1&2 but leave 3 untouched?

    Say i have 1 physical C drive with 3 partitions: 1) System Reserved 2) Boot (Where Windows lives) 3) Lubuntu Then i have a bad BSOD! I boot, and on Grub i choose Lubuntu. Can i secure erase partitions 1&2 but leave 3 untouched? 3 is rescue & fix partition! If secure erase, wipes the whole...
    • ztplru
    • Thread
    • boot drive bsod c drive data recovery lubuntu partition rescue secure erase system reserved windows
    • Replies: 2
    • Forum: Windows Help and Support
  7. Z

    Windows 7 When you secure erase entire SSD; do you wipe out the whole drive or "System Reserved" is untouched?

    When you secure erase entire SSD; do you wipe out the whole drive (all partitions); or "System Reserved" partition is untouched?
    • ztplru
    • Thread
    • data recovery data wiping disk cleanup drive health erase methods partition performance secure erase security ssd storage system reserved windows
    • Replies: 2
    • Forum: Windows Help and Support
  8. Z

    Windows 7 Create "System Reserved" partition on second D: drive.

    Tried installing Lubuntu on my D: drive which contains only files, no OS! But when i selected this drive in the boot options got message "Bootmgr is missing". Lubuntu gives the option to select which partition should contain the "Bootmgr", and i selected the same partition for the OS to be...
    • ztplru
    • Thread
    • backup boot options bootmgr d drive data recovery disk management dual boot file management gparted linux lubuntu os installation partition storage system reserved troubleshooting unallocated space windows
    • Replies: 4
    • Forum: Windows Help and Support
  9. trombo

    Windows 10 Merging volumes to enlarge c: volume

    My Toshiba has had windows 10 replacing win 7 And my C: volume is running out of space ie[39 gb ][only 3gb free] This is how I purchased it I have tried to add space from an f:volume in disk management with no result only 34 gb free space which I can not add to c: My system is left to right...
    • trombo
    • Thread
    • c volume disk management f volume free space merging volumes partition recovery space management storage issues system reserved tech support toshiba upgrade volume management windows 10 windows 7
    • Replies: 13
    • Forum: Windows Help and Support
  10. E

    Windows 7 System reserved on a different HDD than the System itself

    Hi all, I've got a 2TB hdd that I want to remove from the current machine, but I've noticed that there is a System Reserved partition on it. If I remove the HDD, the system will boot up normally? Or I'll have problems?
    • EugenX
    • Thread
    • 2tb boot issues hardware hdd migration partition removal storage system reserved windows
    • Replies: 4
    • Forum: Windows Help and Support
  11. M

    Windows 7 Advanced boot options does not start.

    Hello, i have hp/compaq dc7800 pc and win7 ultimate 32bit. I try to go to advandced boot options (hitting f8 at startup), but i only get keyboard error. (42 301 keyboard error) In windows it works ok. I have tested this pc with 4 keyboards and results are all same. Other win7 computer boots ok...
    • mar6
    • Thread
    • 32-bit advanced boot boot options compaq computer issues keyboard error recovery partition system reserved troubleshooting windows 7
    • Replies: 6
    • Forum: Windows Hardware
  12. R

    Windows 10 Help going back from Windows 10 to Windows 7.

    Sorry if this is in the wrong forum, but I am in the process of a clean install and could do with some help asap please! I'm trying a clean install of Windows 7, having upgraded to Windows 10, but experience some annoying bugs. Anyway, I bought a new PC without an operating system, then an OEM...
    • RainWIzard24
    • Thread
    • clean install error message formatting gpt guidance help installation issues mbr oem operating system partition pc installation software system reserved tech support troubleshooting upgrade windows 10 windows 7
    • Replies: 5
    • Forum: Windows Upgrade and Installation
  13. R

    Windows 7 Please help! :-(

    Ugghhh... I have a headache. I am trying a clean install of Windows 7, having upgraded to Windows 10, but experience some annoying bugs. Anyway, I bought a new PC without an operating system, then an OEM copy of Windows 7 :-/ So, after attempting this clean install, I got to the stage after...
    • RainWIzard24
    • Thread
    • bugs clean install computer error formatting gpt headache help installation mbr new computer oem partition support system reserved troubleshooting upgrade windows 7
    • Replies: 1
    • Forum: Windows Upgrade and Installation
  14. Barna

    Windows 7 How could i relocate system reserved partition from one hdd to another?

    Hello, I'd like to ask for help. I installed windows on my 1TB drive, but it automatically put the system reserved partition on my 320GB drive. Is it possible to relocate that to my 1TB drive, and if so, how complicated would that be, and how would I go about doing that? Thanks in advance, Barna
  15. D

    Windows 8 windows 8.1 system image restore fail

    hi Microsoft forum Normally I've no problem in create a system backup image and restore it back to formal state. However, after a while say a few weeks or a few months when I feel like to restore windows again, it fails. I don't know what happens here, the image restore tool simply says...
    • David Yu
    • Thread
    • backup boot issues disk management partition restore system image system reserved troubleshooting windows 8.1 windows forum
    • Replies: 3
    • Forum: Windows Help and Support
  16. Abdur Rouf

    Windows 8 My hard disk partition have changed to all healthy and there is no primary partition...

    My hard disk partition have changed to all healthy and there is no primary partition... Recently I tried to create a system reserved partition and then its happend .... Now how can I fixed it ???
    • Abdur Rouf
    • Thread
    • data recovery disk management hard drive health partition primary storage system reserved windows issues
    • Replies: 9
    • Forum: Windows Help and Support
  17. M

    Windows 7 Rescue Disk cannot be created error 0X80070057

    Hello; I get this error when trying to create a rescue disk from the Backup and Restore app in Control Panel. I know that the disk can be created using recdisc.exe. That is not the issue. Why not from Control Panel? Second, is this rescue disk failure possibly related to the deletion of the...
    • Mychal
    • Thread
    • backup control panel disk creation error recovery rescue disk restore system reserved troubleshooting windows
    • Replies: 24
    • Forum: Windows Help and Support
  18. M

    Windows 7 Rescue disc creation from control panel recovery app fail with parameter error

    I have successfully created a rescue disc from outside of windows (with a boot disk) but cannot get past a 0x80070057 error code from the recovery app "create rescue disc" button from within control panel. My question is: for the rescue disk to be created from the control panel app, which...
    • Mychal
    • Thread
    • boot drive control panel disk creation error partition recovery app recovery disc system reserved troubleshooting windows services
    • Replies: 10
    • Forum: Windows Help and Support
  19. L

    Windows 8 Help Needed: Safely Moving Windows 8 from E: to C: Partition Without Data Loss

    Hi there, I'm really in need of some help with my Windows 8. When I installed my Windows XP, for some reason my Windows 8 moved to E: Partition, when it previously was on C: Partition, now C: Partition is a System Reserved partition. Now what I want to know, is moving my Windows 8/E: Files to...
    • Llew
    • Thread
    • boot issues boot options data recovery error message file transfer hal.dll partition partition management system reserved windows 8 windows xp
    • Replies: 1
    • Forum: Windows Help and Support
  20. A

    Windows 7 MFTR overwritten. No drive D:

    Using the program called Eraser, I erased the free disk space of drive D: which is a logical partition on my only physical drive. Apparently the program overwrote the Master File Table Records and as result, I do not see the content of the D: drive. When looking at the properties of the D...
    • aim
    • Thread
    • backup corruption d drive data recovery disk formatting disk management eraser explorer file recovery file system logical partition master file table mftr partition raw recovery recuva security updates system reserved windows 7
    • Replies: 3
    • Forum: Windows Help and Support