Is this the first time you'e installing Intel XDK or you're installing over a previous install? What's the exact message when you say "It keeps asking me to go through the repair process"?
Sonal -- use the procedure described here > https://software.intel.com/en-us/xdk/faqs/general#uninstall-xdk < to completely uninstall the XDK from your system. Then download the xdk from http://xdk.intel.com and install again.
If you are installing on a Mac and see these messages:
Answer "Yes" to above and:
Answer "Ignore" to above.