OpenCL doesn't detect nvidia gpu

I have recently dualbooted kali linux with windows and everything has been working fine until I wanted to crack some hashes on my gpu. I used hashcat and saw that it was only doing like 30 hashes per second, so I figured my gpu drivers weren't installed. I was right, so I installed them and it worked for about 30 minutes but then every time I typed clinfo it only showed my cpu and when I typed hashcat -I it said no deviced found. Please help.