Microsoft will reserve up to 7Gb of storage on your device to use for Updates in version 1903, scheduled for release in April. Here’s how to disable it.
Microsoft is hoping to make Windows 10 updates install smoothly by increasing the amount of storage it uses for delivering updates by reserving as much as 7GB on your device. Previous feature updates (semiannual channel releases) have failed if users didn’t have enough storage space, requiring users to manually free up enough storage to install the upgrade.
Microsoft said in an announcement that it will be introducing the Reserved Storage Feature in the next semiannual channel release (build 1903, codenamed 19H1) due out in the spring, though the Reserved Storage feature is available for testing now in the latest Windows Insider Program release.
In the announcement Microsoft explains:
“Starting with the next major update we’re making a few changes to how Windows 10 manages disk space. Through reserved storage, some disk space will be set aside to be used by updates, apps, temporary files, and system caches. Our goal is to improve the day-to-day function of your PC by ensuring critical OS functions always have access to disk space.
Without reserved storage, if a user almost fills up her or his storage, several Windows and application scenarios become unreliable. Windows and application scenarios may not work as expected if they need free space to function.
With reserved storage, updates, apps, temporary files, and caches are less likely to take away from valuable free space and should continue to operate as expected.
Reserved storage will be introduced automatically on devices that come with version 1903 pre-installed or those where 1903 was clean installed. You don’t need to set anything up — this process will automatically run in the background. The rest of this blog post will share additional details on how reserved storage can help optimize your device”.
The amount of storage used for a Windows 10 update varies from 2.5GB to over 7GB, depending on the individual system and the size of the update.
How much space Windows 10 will reserve can’t be changed, but it can be disabled now with a small edit to the Windows Registry. Not all devices running Windows have large amounts of available storage, and users may not want to use a USB flash drive to install an upgrade. Some users would prefer to control access to storage and how storage is used on their systems. This brief article explains the steps needed to disable the Reserved Storage Feature in the Windows Registry. It’s a good idea to back up the registry before making any changes so it can be restored if any issues arise.
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