Unable to end DOS application; hangs due to possible memory/disk space problem.
Cause:
Applications may freeze due to various causes, such as memory or disk space.
Solution:
Press CTRL+ALT+DEL and click 'End Task'.
1) Press CTRL+ALT+DEL
2) Click 'End Task'.
NOTE: To prevent applications from freezing, reduce the number of running applications. Increase disk space if the problem still occurs, or add additional RAM.
