How can I delete unwanted non-program files from drive c?

when I try to delete these, I get "can't delete,check if no space or full " sign. what can the reason be?

How can I delete unwanted non-program files from drive c?
Start -%26gt; Control Panel -%26gt; Add/Remove Programs -%26gt;





Find your program in the list and click Uninstall.
Reply:1. Click on Start, Run, and type CMD and Press Enter to open a Command Prompt window


2. Leave the Command Prompt window open, but proceed to close all other open programs


3. Click on Start, Run and type TASKMGR.EXE and press Enter to start Task Manager


4. Click on the Processes tab, click on the process named Explorer.exe and click on End Process.


5. Minimize Task Manager but leave it open


6. Go back to the Command Prompt window and change to the directory where the file is located. To do this, use the CD command. You can follow the example below.





Example: to change to the Windows\System32 directory you would enter the following command and Press Enter





cd \windows\system32


7. Now use the DEL command to delete the offending file. Type DEL %26lt;filename%26gt; where %26lt;filename%26gt; is the file you wish to delete.





Example: del undeletable.exe


8. Use ALT-TAB to go back to Task Manager


9. In Task Manager, click File, New Task and enter EXPLORER.EXE to restart the Windows shell.


10. Close Task Manager
Reply:go to start then go to control panel and then add/remove programs and uninstall the desired program