The most common reason for this problem is incorrect date and time settings on your computer. When the date and time are wrong, your device cannot connect properly to Microsoft’s servers to check licenses or allow access. Other possible causes include damaged Store files, missing or incorrect “ALL APPLICATION PACKAGES” permissions in the registry, or software such as ClickShare changing registry permissions by mistake. These issues can also make the Microsoft Store crash. In this article, we will discuss different ways to solve this error.
1. Set the Correct Time & Date
In many cases, the 0xc000027b error is a direct result of incorrect date, time, or timezone settings, often disturbed during an OS upgrade. Many users have confirmed that fixing their computer’s clock resolved the issue entirely. Although this might seem minor, time mismatches can prevent the Microsoft Store from validating connections, leading to automatic app closure. Ensuring that your system’s time, date, and timezone are correct eliminates timestamp mismatches and restores proper app function.
2. Refresh the Store App via PowerShell Command
Sometimes, temporary files within the Microsoft Store folder produce errors that force the app to close automatically. Running a PowerShell command to re-register the Store removes these problematic files and resets app dependencies.
3. Reset the Windows Store
Corruption within the Windows Store component, often due to quarantined files by security software, may trigger this error. Resetting the Windows Store restores default files and repairs dependencies, addressing such corruption. There are two effective ways to reset the Store—through the Settings menu or by using Command Prompt (CMD):
3.1. Reset Windows Store via Settings Menu
3.2. Reset Windows Store via CMD Window
4. Delete Windows Store Cache Registry Keys
Some registry keys may store temporary data that negatively affects the Microsoft Store’s stability. In such cases, simple cache resets are ineffective since corrupted registry entries remain. Deleting specific registry keys with the Registry Editor can eliminate persistent errors.
5. Perform a Repair Install
If the solutions above do not resolve the error, it is likely your system has underlying file corruption that cannot be repaired by standard means. In such cases, a repair install (also known as an in-place upgrade) is recommended. This process reinstalls all Windows components and system files but preserves your personal files, applications, and user preferences. Please note, performing a repair install (in-place repair) requires Windows installation media. For detailed instructions, refer to our comprehensive guide. By following these steps, you can efficiently diagnose and repair the Microsoft Store error 0xc000027b, restoring full functionality and preventing recurrence. Each method addresses potential sources of the issue, ensuring a comprehensive and reliable resolution for all affected users.
