Running Stopwatch in Windows 10.
If you need a standard stopwatch to run on Windows 10, you do not need to install the software again, because there is already a default stopwatch application in Windows 10 (also Windows 8).
To run Stopwatch in Windows 10:
1. Type the word stopwatch in the Search field
2. In the search results on the top select / click Alarm & clock.
The Alarm & Clock window will appear
3. Select the Stopwatch tab, then stopwatch will appear and ready to use.