[solved] error 633: windows 8 your modem already using modem by other system or not configured properly

Dear All

Error 633 : Problem [Solved] for windows 8 Professional

this problem i am facing since i bought the windows 8 and finally i found out the solution for the error 633 problem

Step 1: 

press start button and type the ==> phone & modem  and press Enter (it may differ in several operating systems (standard procedure is go to => control panel => select phone and modem section

Step 2
type any number in Dialing rules (because after completing this step only you are allowed to go modems tap

Step 3

Now you have to remove all the modems displaying here ( select the modem and press remove button this procedure is to be followed for all the displayed modems here)

Step 4 
now you have the uninstall all the already installed wireless modems (like net setter, reliance, airtel etcc)

Step 5
Now restart the system 

step 6
Now install the GSM modem first and try to connect with this then only you can use the CDMA or Broadband modems

thats all you are now error 633 Problem Free person 

thank you guys reply's are appreciated and give me a mail regarding the problems faced by you while doing the above procedure