How do I change the default program in the registry?

You can force this using the registry:

1. Start the registry editor (regedit.exe)
2. Move to HKEY_CLASSES_ROOT.
3. From the Edit menu select New – Key.
4. Enter a name of ‘.’
5. Select the new ‘.’
6. Double click the (Default) value.
7. Change to the HKEY_CLASSES_ROOT used to open, e.g. NOTEPAD for the notepad.exe application.
8. Click OK.

How do I change the file type in the registry?

Click on the file extension to expand the key. The sub-keys associated with the file type you have selected are displayed. Edit the key values by right-clicking on the sub-key and selecting “Modify” from the menu. The changes you make will be saved when the registry is closed.

How do I reset the default application for a file type?

How to Reset File Associations in Windows 10

1. Open Settings.
2. Navigate to Apps – Defaults Apps.
3. Go to the bottom of the page and click the Reset button under Reset to the Microsoft recommended defaults.
4. This will reset all file type and protocol associations to the Microsoft recommended defaults.

Where are file associations stored in the registry?

File associations are stored in both HKLM\SOFTWARE\Classes and HKCU\SOFTWARE\Classes; you can see a merged view of the data under HKEY_CLASSES_ROOT.

How do I change the default program in command prompt?

Please follow the steps.

1. Open an elevated command promote.
2. Use FTYPE {fileType}={commandString} to creat a file type and associated command to open the file.
3. Use ASSOC {.fileExtension}={fileType}

How do I change the default program to open a file in Windows 10?

Use the Open With command. In File Explorer, right-click on a file whose default program you want to change. Select Open With > Choose Another App. Check the box that says “Always use this app to open . [file extension] files.” If the program you want to use is displayed, select it and click OK.

How do I restore the default file associations in Windows 7?

Changing File Associations in Windows 7 (Default Programs)

1. Open Default Programs by clicking the Start button , and then clicking Default Programs.
2. Click Associate a file type or protocol with a program.
3. Click the file type or protocol that you want the program to act as the default for.
4. Click Change program.

How do I remove a file association from the registry?

Step 3: Copy-paste the following path to the address bar and press Enter: Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts. Step 4: Under FileExts key, find the file extension you want to remove file association for. Right-click it and choose Delete.

How do I change file associations?

Change the file association for an email attachment

1. In Windows 7, Windows 8, and Windows 10, choose Start and then type Control Panel.
2. Choose Programs > Make a file type always open in a specific program.
3. In the Set Associations tool, select the file type you want to change the program for, then choose Change program.

How do I change my default app protocol?

To change the default for a file type or protocol, click or tap on the default app set for it (or on Choose a default). A list is shown with the apps that can open that file type or protocol. In it, click or tap the app that you want to use as the new default. Your changes are applied immediately.