Hi Abishek. I'm Greg, an installation specialist and 9 year Windows MVP, here to help you.
See the known issue here first: http://www.thewindowsclub.com/fix-100-disk-usag...
Test your Hard drive with diagnostics, preferably bootable: https://www.lifewire.com/free-hard-drive-testin...
Follow that with a Disk Check: https://www.groovypost.com/howto/check-hard-dri...
Go over this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done: http://answers.microsoft.com/en-us/windows/wiki...
Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files. Then continue with the other steps to go over your install most thoroughly.
If nothing else works then I'd do a slow motion Clean install where you test performance after OS install, then after each group of Updates, then after each program install or settings change. Follow the illustrated Clean Install steps in this tutorial which compiles the best possible install that will stay that way as long as you stick with the tools and methods given: http://answers.microsoft.com/en-us/windows/wiki...
I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.
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