Hello! Mohammad Hossein Izadifard
Thank you for posting in Microsoft Community
As per checking the shared information that you're experiencing issues with the subscript and superscript shortcuts in Microsoft Word. Just to set your expectation that we can only do basic troubleshooting steps for Microsoft 365 office products, OneDrive, and Outlook.
Allow me to ask some questions:
- May I know what version and edition of Office installed in your computer?
- You can open any Office apps
- Go to File > Accounts - on the right side you can see Product Information
- May I know how do you access your document? is it by opening a Word application? or Word for the web?
- May I know if this is happening to all of your documents or just specific files?
Based on the information you've provided, it seems like you've already tried some troubleshooting steps. However, I have a few more suggestions that you can try:
- Check if the "AutoCorrect" feature is turned on. Go to "File" > "Options" > "Proofing" > "AutoCorrect Options" and make sure that the "Replace text as you type" option is checked.
- Try resetting the Equation Editor settings. Go to "File" > "Options" > "Customize Ribbon" > "Keyboard Shortcuts: Customize" and select "Equation Editor" from the "Categories" list. Then, click on "Reset All" and restart Word.
- You can as well turn off add-ins that may have caused the issue. By doing this go to File > Options > Add-ins > Manage: COM Add-ins > Select Go. And disable one by one to isolate the issue.
I hope one of these solutions works for you. Let me know if you have any further questions or concerns.
Thank you,
Vince
Microsoft Community Moderator