Windows 10: C drive filling up for no reason / AppData

Hey people, I kinda have a big problem with my boot drive. I don't know much about this kinda stuff, so sorry if this is a dumb question.


I have 2 drives on my pc: A 250gb boot drive C: and a 2TB data drive D:. The C: Drive only contains stuff like videos & downloads, plus 1 or 2 games that I play frequently, and I always try to keep about 50gb free, and put everything else on my D: drive.


Today I was downloading a document for my online schooling, which was only like 100kb & noticed that my C: drive had gone from 50gb to only 10. After double checking that nothing was downloading in the background nothing on steam, battlenet, origin, etc. I just sat there refreshing & watching as the disk just kept filling up until there was only about 10 or so megabytes of space left. I did all the windows troubleshooting, followed online tutorials did multiple virus scans with Trend-micro, and couldn't find anything.


However, according to Windows storage, games on my C: drive were taking 113gb, which isn't right since the only games on my C: drive are CS:GO and Escape from Tarkov, which both combined take up ~50gb of space. Every other file was around ~100mb or less, which only added up to about an extra 10 or so gb. So basically, there's an extra 40GB worth of games on my C: drive which just downloaded out of nowhere apparently. There were no updates for either of those games, so it's not due to that.


I ended up manually right clicking & checking the properties of every single file on my C: drive, and eventually found that my AppData under my user file took up 100gb of storage. Could this be the problem? If it is, is there a way to move it onto my D: drive? Any other ideas on how i can fix it?


Please help :

:)

 

c drive automatically filling up

Another suggestion was this:

https://answers.microsoft.com/en-us/windows/for...

 

C: Hard Drive Randomly Filled Up

There are different situations would cause C: hard drive randomly filled up:

1. Virus and malware may keep generating files to fill your system drive.

2. You may have saved large files to C: drive that you are not aware of. For example, the default download folder is located in C: drive.

3. Pages files, previous Windows installation, temporary files, and other system files may have taken up the space of your system partition.

4. There are too many large programs installed on C: drive.

There might be more reasons behind C: drive mysteriously full. You can use one or more of the methods below to clean up C: drive space in Windows 10/8/7.

1. Scan your computer for unwanted software or virus

2. Run Disk Cleanup

3. Delete hibernate file

4. Uninstall the large applications.

There are more detailed methods for
C drive is full without reason. You may find the answer

 

c drive filling up

I am getting a problem. I am downloading a big 55 gb iso file in other drive except C but C drive is filling up. Why? and what is the solution?