Hi Jyoti,
I’m sorry to hear you have a problem with the installation.
I was able to complete the installation earlier following this guide
Guide to Downloading and installing the webMethods Free Trial Version? There is also a video tutorial here How to install webMethods Integration Free Trial - YouTube.
Can you please try following the installation steps from the guide? If it’s not working again please share more details as Sreekanth suggested above.
Thanks,
Mariela