Windows 10 Cannot Update Reserved Partition
On Windows 7, the size is 100 MB whereas on Windows 8, it is 350 MB. Do you really need this space? I would recommend that you not delete or try to enlarge this partition. You can instead prevent it being created during Windows installation. If you are sure that you will not be using BitLocker, then you may go ahead.The System Reserved Partition holds the Boot Configuration Database, Boot Manager Code, Windows Recovery Environment and reserves space for the startup files which may be required by BitLocker, in case you use the BitLocker Drive Encryption feature. I am not sure that it has anything to do with the upgrade to Win 10 though.message edited by Ewen. Thanks for your reply.
I do not intend to use BitLocker. The System Reserved Partition is already in place. I have downloaded three different tools to manage partitions and each one shows a slightly different image of my hard drive.I know without doing anything.
My Windows 10 will not get the update to version 1703. That may not mean anything to the performance of my system.
Also, not sure I will continue to get regular updates since I don't have 1703.I've backed-up all my data. I've also used the back-up within Windows 10 to back-up my system on a USB for recovery.The view in MiniTool Partition Wizard shows 1.23GB with all used and it's labeled as OTHER. And GPT (Reserved Partition).Directly beneath that is 22.18 GB of unallocated space.Directly ABOVE the GPT (Reserved Partition) is100MB (12.78MB unused).FAT32.
GPT (EFI System partition). Active & SystemI hope to get some guidance on whether to do nothing. Or attempt to enlarge the appropriate partition (whichever one that may be).Again.
Infopackets Reader Steve S. Writes:' Dear Dennis,I am trying to install Windows 10 Threshold 2 version 1511, release 10586 / 1511, otherwise known as 'Th2release Professional 10586' through Windows Update, but I keep getting an error when it tries to install.
Windows 10 Cannot Update Reserved Partition Software
The error message states 'We found some issues. Select this message to fix and finish updating.' I clicked the link and received another message, stating 'Could not update system reserved partition.' So, now the update won't install and I can't upgrade my Windows 10 to the latest version.
Can you help? 'My response:Admittedly I did not have any experience with this error message, but have come across a number of forum posts about this problem. It has to do with a hidden system partition (called the System Reserved Partition), which stores information about Windows. The partition itself is about 100 MB large (usually), but sometimes that partition becomes full or even corrupt, which then causes errors when you attempt to install a major update to Windows - including Windows 10 version 1511, build 10586.I offered to connect to Steve's computer using, and we did just that. We discussed the issue for about 15 minutes, and I made some suggestions. I offered to carry out the task by researching the issue further, but Steve wanted to see if he could fix it on his own. He wrote back a little while later:' I finally solved my problem.
Here is what I did:First, I used MiniTool Partition Wizard to shrink my Windows partition on my hard drive by 1 gigabyte, as you suggested. In theory, this would allow me to increase the size of the System Reserve Partition by 1 GB (which happens to be located directly to the left of my Windows partition). However, when I tried to increase the size of the System Reserved Partition, it failed - most likely because the volume was corrupt.To fix the issue, I assigned a drive letter to the System Reserved Partition using MiniTool Partition Wizard - normally this partition is hidden and has no drive letter.

Once the drive letter was assigned, I was then able to see the System Reserved Partition via 'This PC'. To fix the file system errors, I right clicked the drive letter, selected Properties, then clicked the Tools tab, then under the Error Checking heading, I clicked on the 'check' button, then clicked on the 'Scan drive' link.
Windows found errors on the drive, so then I was able to correct them.Once that was finished I went back to the MiniTool Partition Wizard program and increased the size of the System Reserved Partition by about 1 GB. When that was done, I was able to run the Windows 10 update without any issues. Feel free to use this experience as an article for Infopackets. 'Thanks Steve for the update overview, and I'm sure this will help others with this issue.

If anyone reading this needs help going through this procedure, you are welcome to for help and I can do it for you using. I also recommend that if you try and do this on your own that you please backup your entire system before proceeding. Any incorrect changes to the system or failure during the partition update can lead to catastrophic data loss. Got a Computer Question or Problem? Ask Dennis!I need more computer questions. If you have a computer question - or even a computer problem that needs fixing - so that I can write more articles like this one. I can't promise I'll respond to all the messages I receive (depending on the volume), but I'll do my best.About the author: Dennis Faas is the owner and operator of Infopackets.com.

With over 30 years of computing experience, Dennis' areas of expertise are a broad range and include PC hardware, Microsoft Windows, Linux, network administration, and virtualization. Dennis holds a Bachelors degree in Computer Science (1999) and has authored 6 books on the topics of MS Windows and PC Security. If you like the advice you received on this page, please up-vote / Like this page and share it with friends. For technical support inquiries, Dennis can be reached via Live chat online this site using the Zopim Chat service (currently located at the bottom left of the screen); optionally, you can contact Dennis through the website.