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xander123

c drive filling up automatically

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Recently, the c drive of my computer is filling up quickly apparently for no reason.Since then my computer has gotten slow too,I've tried scanning with antivirus and malwarebytes both of them gave  clean results.However the c drive is filling up.I don't know if it is a malware or not but can anyone help me?

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Hello @xander123

It is very unlikely an infection but possible. There were some old time worms that used to do stuff like that but I've not seen any current infections filling up a drive.

 

Please run the following steps and post back the logs as an attachment when ready.

NOTE: I may not be able to get back to you until Monday morning but I'll try if you do post back the logs.

STEP 01

  • If you're already running Malwarebytes then open Malwarebytes and check for updates. Then click on the Scan tab and select Threat Scan and click on Start Scan button.
  • If you don't have Malwarebytes installed yet please download it from here and install it.
  • Once installed then open Malwarebytes and select Scan and let it run.
  • Once the scan is completed click on the View Report button, then the Export button and save the file as a Text file to your desktop or other location you can find and attach that log on your next reply.
  • If Malwarebytes won't run then please skip to the next step and let me know in your next reply.

STEP 02

Please download AdwCleaner by Malwarebytes and save the file to your Desktop.

  • Right-click on the program and select RunAsAdmin.jpg Run as Administrator to start the tool.
  • Accept the Terms of use.
  • Wait until the database is updated.
  • Click Scan Now.
  • When finished, please click Clean & Repair.
  • Your PC should reboot now if any items were found.
  • After reboot, a log file will be opened. Attach or Copy its content into your next reply.

 

RESTART THE COMPUTER Before running Step 3

STEP 03
Please download the Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system. You can check here if you're not sure if your computer is 32-bit or 64-bit

  • Double-click to run it. When the tool opens, click Yes to disclaimer.
  • Press the Scan button.
  • It will make a log (FRST.txt) in the same directory the tool is run. Please attach it to your reply.
  • The first time the tool is run, it also makes another log (Addition.txt). If you've, run the tool before you need to place a checkmark here.
  • Please attach the Additions.txt log to your reply as well.

 

Thanks

 

 

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The computer is not showing any signs of an infection. I would recommend using the following program to try to track down where data is being consumed.

https://www.jam-software.com/treesize_free

That should help but if you want to see even more detail there is a free 30 day trial of the Standard or Pro versions.

Run it and save or take a screen shot of what the values are. Then run it again each day for a couple days and see what is consuming the space.

 

 

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The logs provided did not show any real signs of an infection and I'm not aware of any infections aside from a very old worm infection that take up space.

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I tried deleting the local restore points and created a new one,it freed upto 10gbs and the drive was back to almost normal.But,now it started fluctuating again,like somedays 143gb and other days 150gb.Moreover, days ago, my laptop was showing booting issues with automatic repair showing up several times,finally i went into safe mode and restarted the lap and it booted normally but not that efficiently.Do these factors contribute to the c drive filling up?and Just a genuine question, is farbar  as efficient in finding virus infection as finding out malware infections(passing on an opinion to a friend).

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Windows updates themselves and normal operations can consume and use multiple GB of data. Again though that tool when used properly can tell you exactly where and what is using it. But, if you're having trouble with a few GB missing then perhaps you should consider replacing the drive with a much larger drive. Huge multi terabyte drivers are pretty cheap nowadays

 

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Yeah, the issue is that i am not concerned if only some gbs are missing.However, i do not want it to go out of range like 20gb or 30gbs and  this is the first time this has happened to me.Actually, it all began after the booting issue.The automatic repair said that it could'nt fix the computer but somehow the computer booted after getting into safe mode.

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Unfortunately what you describe appears to be normal operations of Windows. There are days or times where some users complain of 40+ GB changes to their systems but how Microsoft works internally in most cases accounts for this behavior.

Not that I would agree with messing with it but you can review and decide for yourself if the WinSxS folder is something to clean up. I currently have 500 GB of free space and have no desire to mess with it on my own system.

https://www.windowscentral.com/how-reclaim-space-reducing-size-winsxs-folder-windows-10

 

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Your logs show you have 150GB of free space so not sure what your real concern here is. The logs do not indicate an infection and the change of 7GB is well within range of normal operation of Windows.

 

 

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Due to the lack of feedback, this topic is closed to prevent others from posting here.

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Thanks

 

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