When I am typing on word it keeps on deleting my paragraphs.

This usually matches one of these Word issues:

1. Overtype mode is on When this is enabled, typing replaces existing text so it can look like paragraphs are being deleted. To turn it off:
   1. In Word, select File > Options.
   2. Select Advanced.
   3. Under Editing options, clear both:
      • Use the Insert key to control overtype mode
      • Use overtype mode
2. An add-in or macro is interfering with Word If Word glitches while typing, an add-in or auto macro can cause unexpected behavior. Check COM add-ins:
   1. In Word, go to File > Options > Add-ins.
   2. At the bottom, under Manage COM add-ins, select Go.
   3. Clear the check boxes for the listed add-ins.
   4. Restart Word and test again.
   5. If the issue stops, re-enable add-ins one at a time to find the one causing it.
   Check auto macros:
   1. In Word, use the Search box at the top and type Macros.
   2. Select View macros.
   3. If any macro name begins with Auto, remove it.
3. Word startup items are causing the problem Templates or add-ins loaded from the Word startup folder can also cause this. To test:
   1. Quit all instances of Word and Outlook.
   2. Open File Explorer and check the Word startup folder: C:\Users\<username>\AppData\Roaming\Microsoft\Word\STARTUP
   3. Move the items from that folder to the desktop temporarily.
   4. Start Word and test typing again.
   5. If the problem is gone, add the files back one by one to identify the cause.
4. Make sure Office is updated
   1. Open Word.
   2. Go to File > Account.
   3. Under Product Information, select Update Options > Update Now.

If Word is actually closing while typing, not just deleting text, there is a known issue in Microsoft 365 apps after updating to Version 2407 Build 17830.20138 or higher, especially when language pack files are out of date.

References:

• Text disappears as I type
• You are prompted to save the changes to the Normal.dotm template every time you quit Word
• I get a "stopped working" error when I start Office applications on my PC
• Outlook, Word, or OneNote unexpectedly close when typing