You could experience an infection with 'Adware.Dynamic', published by Dynamic Desktop Media.

1)Press ctrl+alt+del and end the process sysu.exe .

2) Go to C:\Program Files.

3) Locate the folder ddm and delete it.

4) Click on start -> run and type in regedit.

5) Under HKEY_LOCAL_MACHINE -> SOFTWARE remove the folder ddm.

6) Click on start -> run and type in msconfig.

7) Click on the right-most tab labeled startup.

8) Scroll down and locate an entry with no command line.

9) Uncheck the box and apply all changes.

10) Reset your computer, check the checkbox for a window that comes up
saying you changed startup settings.