How to find out what's writing to my SSD so much?

May 16, 2018
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Hi! I have an SSD which I use to run my windows 10 OS only, I try to install everything else in HDD. Recently I've noticed a drop in 3% of SSD health in only 17 days. I checked the monitoring software from SSD manufacturer and it seems I wrote 740GB in 4 days! I have no idea when this happened. How can I check what caused this and make sure it doesn't repeat again?
For context: I do a lot of research work/have a lot of firefox quantum tabs open at once, moved a lot of files to external drives, played one game through steam, run design software like zbrush, photoshop, maya but have taken percautions to set all their scratchdisks and autosaves to HDD... Also constantly check the SSD drive space and it always sits and shifts from 185 to 186GB free space everynow and then (of 224GB total), doesn't go past it, so I'm clueless of where this came from.
 
Solution


Something writing "740GB in 4 days" sounds like a virus possibly.
Or, you copying and moving things around.
Or something with your firefox tabs.

However...with a 240GB drive...you really do want your applications on that SSD. That's the whole point of having one. To have things run fast.
SSD: Toshiba TR200, 240gb
My system has 19~ days, new computer, custom built
Im only using 30GB disk space out of 222GB, pretty much just the OS in SSD, all other software is in another drive
Im using Avast Free antivirus, with 60day pro trial + Malwarebytes Premium
 


Something writing "740GB in 4 days" sounds like a virus possibly.
Or, you copying and moving things around.
Or something with your firefox tabs.

However...with a 240GB drive...you really do want your applications on that SSD. That's the whole point of having one. To have things run fast.
 
Solution


See if you have enable Windows backup and it is backing up files on the SSD.
If you use Process Monitor you will find out which application is using 'System'
You could take a look at ->this video<- if you need help how to filter process and find the culprit.

I suggest you keep one antimalware solution, they might clash instead of protecting you.
Malwarebytes is excellent at cleaning infected system but Avast will do a better job protecting your system from getting infected.