After downloading the application, whenever I click on it for installing, a window opens but nothing shows, only white screen is there. My PC has everything listed in the requirements of the software. Kindly help me, I need to complete my college practical.

Hi Support Member​ 

From your brief description, I'm guessing you are trying to launch IBM SPSS Statistics Subscription. The "white window" reminds of behavior in that product where there is a problem between the SPSS Subscription product and communicating with the IBM SPSS Statistics Subscription license server. Are you launching the product from behind a web proxy server?

https://www.ibm.com/support/knowledgecenter/SSLVMB_sub/statistics_mainhelp_ddita/spss/base/faq_proxy.html