Hi, @ABHISHEK RAI
First, please check if your Microsoft 365 subscription is active or if your Office license is listed. Sign in here:
https://account.microsoft.com/services
If the subscription is active or the Office license is listed, please also try opening Word in Safe Mode:
- Press Windows + R.
- Type
winword /safe and press Enter.
Then please let me know:
- Does Word open in Safe Mode?
- Do Excel or PowerPoint open normally, or do they show a similar error?
- Are you using Microsoft 365 or a one-time purchase version such as Office 2021 or Office 2024?
This will help narrow down whether the problem is specific to Word or affects the Office installation itself.
Thanks!