OSC File Extension

OSC file icon

Remote Installation Services Client Installation Wizard Format

What is a OSC file?

The OSC file extension is linked to Remote Installation Services Client Installation Wizard Format and belongs to the System Files category, which includes 251 files.

The Remote Installation Services Client Installation Wizard Format (OSC) was developed by Microsoft, which created file format and 242 programs to work with them.

OSC files are compatible with various operating systems, including Linux, Windows and Mac OS. To open a OSC file, you can choose from 7 programs such as Sublime Text, Windows Notepad and Atom.

How to open a OSC file?

If you cannot open a OSC file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.

Sublime Text, Windows Notepad and Atom are recognized as the most popular software solutions for dealing with OSC files. To set up the newest version of Windows Notepad on your device, simply go to the official Microsoft website. There you can download the edition compatible with every operating system.

Once installed, Windows Notepad will be set as the default program, and OSC files will open automatically.

Set Windows Notepad to open OSC by default

Setting a default program by file type in Windows

  1. Right click on your OSC file, then select "Open with" and click "Choose another application";
  2. Find the Windows Notepad application in the pop-up window and select it as your preferred program;
  3. Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening OSC files.

Change default apps on Mac

  1. Right-click or use Control + Left-click on the desired OSC file to access the file’s context menu;
  2. Select "Open in application" and click "Other";
  3. At the bottom of the window, find the "Enable" menu, where "Recommended Programs" is already selected by default;
  4. Within this menu, select "All Programs" and then locate Windows Notepad. Check the box next to "Always open in app" to set it as the default program.

How to edit a OSC file?

Editing OSC files requires installing professional software that lets you open and edit system files. Online editors have more limitations compared to dedicated Remote Installation Services Client Installation Wizard Format programs.

Best OSC editors in 2026

Considering the mentioned criteria, we have compiled a list of OSC editors that may suit your needs.

OSC Editor SoftwareDeveloperPlatformsOverall Rating
TextEditAppleMac OS4.8 out of 5 (40 reviews)
GeditGNOMELinux4.6 out of 5 (38 reviews)
Notepad++Notepad++ TeamWindows4.6 out of 5 (37 reviews)
Sublime TextSublime HQ PtyWindows, Mac OS, Linux4.6 out of 5 (39 reviews)
Windows NotepadMicrosoftWindows4.2 out of 5 (37 reviews)
Atom-Windows, Mac OS, Linux4.1 out of 5 (36 reviews)

Easy OSC Troubleshooting

Certain problems with OSC files can be conveniently fixed with small software tweaks. Here are some helpful tips to address them.

What are the steps to repair a damaged OSC file?

Open the corrupted OSC file in a recovery program and select the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged system files.

How do I know if my OSC file is corrupted?

Corrupted OSC system files may show the following signs:

  • Attempts to open the file result in errors or failed results;
  • Editing the archive in Sublime Text is accompanied by slow performance or delays;
  • The file causes Windows Notepad or other programs to hang or crash during operation;
  • Unexplained increase in OSC file size;
  • Error messages appear while working with the file;

What are the reasons behind Windows Notepad crash?

The likely cause of Windows Notepad crashing is lack of software updates. Install the latest updates available for Microsoft products.

Restarting your computer is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.