in table 2 for example in step 210 at a second moment the computer system 10 conducts the system administration again the step 212 is to obtain the information regarding the system administration of step 210 as shown in tables 4a and 4b then step 214 is to compare the information obtained in steps 202 206 208 and 212 to obtain a comparison result indicating which application results in longer time to complete the system administration in step 216 a prompt message is generated to show the comparison result to the user so that he can decide if he likes to remove the application indicated in step 214 the present invention also discloses a computer readable medium embodying computer code on a computer system 10 the computer code comprising computer executable instructions configured to perform the method illustrated in fig2 as will be appreciated by one skilled in the art the present invention may be embodied as a system method or computer program product accordingly the present invention may take the form of an entirely hardware embodiment an entirely software embodiment including firmware resident software micro code etc or an embodiment combining software and hardware aspects that may all generally be referred to herein as a u201c module u201d or u201c system u201d furthermore the present invention may take.