Here are some steps you can take to resolve Windows installation issues related to file associations:

Step 1: Identify the issue

• Check if your files are being associated incorrectly by opening a different application or editor and saving a word document. If it works, try opening a different application.

• Look for any error messages when trying to save or open files. These can be found in the Event Viewer (Windows key + R > Type «eventvwr» in Run dialog box).

• Check if your file associations are set correctly by going to Computer Properties (Windows key + E).

Step 2: Update or reinstall Windows

• If you’ve recently installed new software, it’s possible that the issue is related to a conflict. Try uninstalling and reinstalling Windows.

• If you’re still having trouble, consider updating Windows to the latest version.

Step 3: Check file associations in other applications

• If you suspect that an application or editor is causing issues with your files, try opening it without saving changes. This can help identify if the issue is specific to that application.

• If multiple applications are causing problems, try closing all non-essential applications and reopening them.

Step 4: Use the registry

• The registry is a key component of Windows where file associations are stored. To edit the registry, follow these steps:

* Press Ctrl + Shift + Esc to open Task Manager.

* Click on «File» > «New Task».

* Select «Run new task» and type «regedit» in the box.

* In the Registry Editor, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts.

* Look for any entries related to file associations. If an entry exists with a value that indicates it’s set incorrectly, you can modify it.

Step 5: Use third-party software

• There are several third-party software solutions available that can help resolve Windows installation issues related to file associations. Some popular options include:

* Disk Cleanup (free)

* CCleaner

* Auslogics File System Optimizer

Remember, if you’re still having trouble resolving the issue after trying these steps, it’s possible that there’s a deeper problem with your system. In this case, you may want to seek further assistance from a computer professional or Microsoft support.