Microsoft is releasing it slowly May 2021 Update (version 21H1), but some problems were recently discovered that the company is supposed to have fixed.
Updating Windows 10 to version 21H1, also known as Windows 10 May 2021 Update, is a small update with quality improvements and bug fixes. In a new update of the documentation, Microsoft confirmed recently that users running this update as well as older versions may experience problems if they use applications that require access to archives event log.

After a recent update capabilities, apps can no longer access event logs, and this can happen on any devices that don't have the latest updates installed.
The company believes this is due to recent security changes and may be resolved if you install the updates June 2021 (released after June 8).
The error also affects those who use older versions of Windows 10, (2004 and 20H2), so it is not limited to a specific version. This is because these three versions of Windows 10 share basic system files and updates.
For those who use the subscription service Xbox Game Pass on Windows 10, it seems there is another annoying issue preventing it installation παιχνιδιών από το Store. Η Microsoft αναφέρει ότι οι χρήστες μπορούν να δουν τους codeς σφάλματος 0x80073D26 και 0x8007139F όταν προσπαθήσουν να εγκαταστήσουν ή να παίξουν παιχνίδι με το Game Pass στα Windows 10.
However, the company released a new update (KB5004476) to correct errors on the affected devices.

Εάν αντιμετωπίζετε προβλήματα κατά την installation παιχνιδιών από το Store, ελέγξτε για ενημερώσεις στο Windows Update (Ενημερώσεις και better safety), and look for a new optional update in the “Optional Updates” section.
Windows 10 seems to be dealing sound problems with the update of the 21H1 version (May 2021 Update). This bug was first identified in May and remains the same, at least according to the latest release notes.
