Hi folks, it become very irritating when a software that we use expires every 30 days and to reinstall it we have to format our system, which takes a lot of our valuable time. But now no need to worry any more coz i m here with the solution. Now you can use the same installed winrar for as long as you wish that too without help of any third party software.
Now to crack winrar just follow these steps...

Step 1
Open a notepad and paste below code in it-
RAR registration da...ta
WinRAR
Unlimited Company License
UID=4b914fb772c8376bf571
6412212250f5711ad072cf351cfa39e2851192daf8a362681bbb1d
cd48da1d14d995f0bbf960fce6cb5ffde62890079861be57638717
7131ced835ed65cc743d9777f2ea71a8e32c7e593cf66794343565
b41bcf56929486b8bcdac33d50ecf773996052598f1f556defffbd
982fbe71e93df6b6346c37a3890f3c7edc65d7f5455470d13d1190
6e6fb824bcf25f155547b5fc41901ad58c0992f570be1cf5608ba9
aef69d48c864bcd72d15163897773d314187f6a9af350808719796

Step 2
save the file as it is with the filename - "rarreg.key"

Step 3
Now cut this file from Desktop and paste it in
"C:\Program Files\WinRAR"
IF A WINDOW WILL POP UP SHOWING "FILE ALREADY THERE"
Then use common sense :) and click on  "Yes, I want to replace"

Step 4
Click on WinRAR.exe and click on Help and select About.....there u go ...the 
Product is Licenced 

  Now enjoy the carcked version of Winrar..