When you run the component store cleanup or install a Feature-On-Demand package using DISM, the error code 1 may appear.Read more
Windows
You’re browsing the “Windows” parent category, which lists articles on every Windows Operating System.
File Explorer: The file you are attempting to preview could harm your computer
After installing the October 15 (2025), cumulative update for Windows 11, File Explorer turns off the preview feature for files downloaded from the internet. After the October 2025 or a later Windows security update is installed, the File Explorer preview pane will display the following message:
The file you are attempting to preview could harm your computer. If you trust the file and the source you received it from, open it to view its contents.
Fix for DISM Error 126 – Could not be initialized
When you run any DISM command, error 126 may appear. The following is the full error message verbatim.
Read more
Error “The configuration registry database is corrupt” when opening image files
When you double-click an image file such as JPG or PNG, the following error message may occur:
The configuration registry database is corrupt.
Fix: Can’t install Language Pack in Windows 10 or 11
When you attempt to install a language pack via Settings or PowerShell in Windows 10 or 11, the language pack fails to install, and you may encounter error code 0x80073D01. In some cases, you may see other error codes mentioned below:
0x80073D01 0x8024002E 0x8034500C 0x800f0954
[Fix] .NET Framework 3.5 Installation Error 0x800F0922
When you install the latest cumulative update or the .NET Framework 3.5 using OptionalFeatures.exe, the installation may rollback with the error code 0x800F0922.
When the latest cumulative update fails, the CBS log may contain the following entry:Read more
October and November 2025 LCUs Roll back with Error 0x800F0922
If the October and November 2025 updates roll back with the error 0x800F0922, this post has the solution. The same issue occurs when installing the Windows 11 updates KB5066835, KB5070773, KB5067036, KB5067036, KB5068861, Windows 10 update KB5066836, and KB5066836 (OS Build 14393.8519) update for Server 2016. The following fix can be applied in that case.Read more
[Fix] Epic Games Launcher Setup Error 2738 in Windows 11
When you try to install or uninstall Epic Games Launcher, the error code 2738 might occur. The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2738. Cause Error 2738 is a Windows Installer error code. As mentioned in the article Fix for Windows … Read more
Windows Sandbox Error 0x800706D9 and Container Manager Service Error 1068
When you launch Windows Sandbox in Windows 10 or 11, the app may stall at the splash screen for over three minutes, and then the error code 0x800706d9 may be shown. The full error message verbatim is mentioned below:
Read more
List of SYSTEM and USER Environment Variables
Windows has a default set of environment variables and their values. There are two types of environment variables: user environment variables (set for each user) and system environment variables (set for everyone). For example, the variable %USERNAME% represents the name of the currently logged-on user account.Read more