Replacement HDD issue

I m using WD 2 TB Purple Survillence HDD in CCTV DVR.I have took 2 - 3 replacement of WD Hard Disk but still it’s not working as it should be because every time i take replacement and it works only 1-2 days and then it stops working , Now what should i do in this condition ? Due to this problem my DVR recordings are down and it costing me lot of money.
dont know what to do

Hi @kamalkishor1703,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting:
https://support-en.wd.com/app/ask