A family of Microsoft word processing software products for creating web, email, and print documents.
1
Open the Settings App.
Go to Personalization - Start.
Disable this setting - Show recommended files in Start, recent files in File Explorer and items in Jump lists.
Wait a few seconds, then re-enable that settings.
2
Open File Explorer.
On the top menu, click the 3 dots and select Options.
On the resulting utility, click the Clear button and ensure all options in the Privacy section are enabled.
Then click the Restore Defaults button.
Restart your PC to apply the changes, then in Word, open a couple of files and check if they appear on the Word Icon jump lists on the taskbar.