Microsoft has addressed a known issue causing memory or disk space errors when opening some documents using Microsoft Word, Microsoft Excel, or other Microsoft Office apps.

This known issue only affects customers who have installed Microsoft Office apps from the Microsoft Store and are trying to open an Office document that triggers the Protected View feature.

Protected View is an Office feature that opens documents in read-only mode and disables most editing functions for documents received as email attachments or opened from an unsafe location (the Internet, someone else’s OneDrive storage, etc.).

Only customers using Microsoft Office on devices running Windows 10, version 20H2 or Windows 10, version 2004 are impacted by this known issue.

Users encountering this issue will see a “Microsoft Excel cannot open or save any more documents because there is not enough available memory or disk space” error.

Microsoft has resolved the issue using Known Issue Rollback (KIR), a Windows 10 capability Redmond uses to revert buggy non-security fixes delivered through Windows Update.

The fix is rolling out to all affected customers, but it might take up to 24 hours to propagate to all non-managed Windows systems.

If you want to apply the fix faster, restarting the device might help according to the known issue’s entry on the Windows 10 Health dashboard.

“For enterprise-managed devices that have installed an affected update and encountered this issue, it can be resolved by installing and configuring a special Group Policy,” Microsoft added.

“Devices need to be restarted after configuring the special Group Policy. To find out more about using Group Policies, see Group Policy Overview.”

Fix for Windows 10 printing crashes in the works 

Microsoft is also working on resolving a known issue causing blue screen errors on Windows 10 computers printing to some network printers after installing the March 2021 cumulative updates.

Redmond confirmed the issue behind system crashes on devices running Windows 10 1803 or later after BleepingComputer reported a wave of user complaints regarding system crashes when printing.

The company has also shared a temporary fix for the Windows 10 printing crashes, which requires enabling Direct Printing or applying the PrinterIsolationAware fix to affected apps.