1. Right-click the disk with Windows installed in the Explorer, and click Properties in the shortcut menu to open the Properties dialog box. Select the Disk Cleanup button from the General tab, and the Disk Cleanup dialog box will appear. After disk cleaning, Windows will pop up a new dialog box.

2. Select the Temporary File option in the File to Delete box, and then select OK. Windows will delete temporary files. To manually delete temporary files, please enter the temporary folder and delete any old temporary files (temporary files begin with a tilde and begin with a tilde. . Tmp extension), return to Word, and try to save the file again.

3. If the file cannot be saved correctly at this time, the following methods can be adopted:

(1) press CTRL+A to select the whole document.

(2) Press CTRL+C to copy the whole document into memory.

(3) Close the Word program. At this point, the system will prompt: "You put a lot of text on the clipboard. Do you want these texts to be available to other programs after quitting Word? The choice is yes.

(4) Reopen the Word program. Then press CTRL+V to paste the copied text into a new file.

In addition, please note that when deleting a temporary file, a dialog box may appear indicating that the file in use cannot be deleted. This is because when Windows is running, you need to use some temporary files frequently. So when deleting temporary files manually, try to delete only a few files at first, and then empty the recycle bin on the desktop. Otherwise, you may not be able to delete all the selected files.