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)
This error may appear for multiple reasons. Some common causes are VPN clients and an unexpected System Reserved Partition size.
Try removing any VPN Clients and attempt the update again.
You might be able to fix this problem by using third-party software to increase the size of the System Reserved partition.
If you have tried both solutions and you still experience Error 0x800F0922 please contact Microsoft Support so that we can further investigate your issue.
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.
Vinpiny35? What media did you use to reinstall your operating system?
Given that you got back to *exactly* the same spot can you state
a. what media source are you using to do a reinstall - OEM?
b. if OEM - what exact computer vendor/model/build/specs?
Go to control panel
administrative tools
computer management and look at the drive space free in each partition. Is there free space in the small system reserved partions?
Had this error ever since this update came up (Dell laptop upgraded from win7 to win8 with media center). Uninstalled the Cisco VPN today and the update finally worked!
When I contacted you, I was told I would have to pay $99. I really resent you trying to jack me up for your failure. I did not generate the problem, you did. You should fix it for free. And post the fix on line so everyone can get it.
I have followed every thread to try to make this update work. I have 27 years of experience with Microsoft. I am an MCSE. I was highly incensed at the blackmail attempt. I bought this computer last December from Dell. I bought the upgrade to 8.1 from the Microsoft store in December. Multiple updates have been done since then. Why should I have to pay Microsoft? You pushed out the update, it is incumbent on you to fix it!!!
You should not. It should be a free call.
I continue to get error 0x800F0922 while attempting to install KB2919355.
I don't use a VPN Client and I have tried all the solutions listed in the 116+ pages of the previous thread over the past several weeks, with the exception of increasing the size of the “System Reserved Partition”. Using the diskmgmt.msc reveals that my laptop (Lenovo T430 running Win 8.1 Pro x64) does not have a “System Reserved Partition”, per se. The closest I get are one “EFI System Partition” and 3 “Recovery Partitions” – all of which are 100% unused. Is this the problem? Do I need to create a “System Reserved Partition”? And if so, how does one go about doing that?
Similar to the situation mentioned by others, the KB2919355 update goes to 99% before rolling back. All other MS updates received before and after this ugly brute have been installed without issue – including the update from Windows 8 to 8.1. However, from the standpoint of time logged in attempting to resolve this failed install, Win 8.1 is the most expensive OS ever encountered by this sorry individual; and at this juncture, any and all (new) suggestions are welcomed.
