Why is Windows Writing So Much Data to My SSD?
Asked by
CuriousCat42
I'm noticing that a lot of data is being written to my SSD, and it's making me a bit uneasy. Most of my computer use is just web browsing. For example, according to HWiNFO64, I saw these write amounts: *1508 MB* at *2:04*, and *5782 MB* at *3:17*. That totals to *4.2 GB* written in just *one hour*. I checked and there hasn't been any Windows Update that could account for this. For context, I'm using a 2 TB Samsung 990 Evo Plus and I have a fresh install of Windows 11.
Answers
Caching is definitely a likely culprit here! If you go into Task Manager, you can actually track the I/O read and write bytes to see which processes are working your SSD the hardest.
Reply to this answer
Have you considered that it might be due to the SSD's garbage collection? I’m not entirely sure if that would be reflected in HWiNFO, though. If you were browsing when those writes happened, that could explain it—browsers tend to keep a big cache for performance.
Reply to this answer
Honestly, 4GB of data isn't a huge amount these days. It could simply be from the browser’s cache while you're surfing the web. I wouldn’t worry too much about it. If you want, you could set your browser to use RAM for cache instead of the SSD.
Reply to this answer
It does seem a bit high for just browsing. Generally, around 1GB is average unless you're streaming a lot of video or visiting heavy websites. What browser are you using? Some, like Firefox and Chrome, continuously back up sessions which could add up quickly, though not usually to 4GB! Trying a private browsing window could help isolate the issue.
BraveUser99: I’m using Brave.
Reply to this answer
Also, keep in mind that if you're using a lot of RAM, it could be Windows pulling from your paging file, which can ramp up writes to the SSD. Windows can be quite aggressive with paging.
Reply to this answer
Add your answer
Answers are reviewed before publication.
TechGuru87: That’s true! You can also check out ctt winutil if you want to reduce some Windows bloat or telemetry. Just make sure your SSD's firmware is current, too.