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Hi, i've noticed that my C:\ drive keeps filling itself up without any reason. I'm not installing any new software, not downloading anything in it and it's only for system files and softwares. A few days ago, i had 162GB free. A few days later, i only have 137GB free? I haven't installed any new software and still so much of my space is going somewhere? What i have tried to fix it: 


Running disk cleanup and cleaning unneccassary files. No Windows.old or Upgrade folder was there

Deleting temporary files from %temp% directory

Disabling and deleting system restore points

Emptying my recycle bin

Running a complete scan of C:\ drive from Windows defender to check for malware (none found)

Double checking all of my C:\ drive folders to look for any videos or photos etc.


None of the methods stated above helped me in the way i was expecting them to. Any help would be greatly appericieated.




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Did you run the disk cleanup utility with pushing the system files (with the admin badge) to check again?


Usuallym what I find in my drive hogging space are Windows Update files, Previous versions after bigger patches, files waiting to get send to MS (usually over 1 gb), Ram dumps after crashes... 


And another thing... the browsers Cache files... My chrome (iron) folder in my profile once was above 30 gb 😃 ... 



Just had to fresh install due to a product form Citrix wrecking my poor old windows... 


Currently, and I'm still missing some programs, I'm ad 140 gb of 227 gb free


2 Main Systems (mine and my late wifes): AsRock Fatal1ty Z77 Pro, Core I5 3570k @4300, 16 GB Ram DDR3 2133, some SSD, and a 2 TB HDD each, Gainward Phantom 760GTX. (one of those got a Gainward Phoenix GS 1060 if I had waited only a month longer ^^) 


On the Road: Acer Aspire 5 Model A515-51G-54FD, Intel Core i5 7200U, 8 GB DDR4 Ram, 120 GB SSD, 1 TB HDD, Intel CPU GFX and Nvidia MX 150, Full HD IPS display


Media System: Asrock ASRock Z87 Extreme4/TB4, Intel Core i5 4460, 16 GB Ram DDR3 1600 ADATA XPG, 1 275 GB SSD, 4 Seagate Ironwolf 4TB HDD in raid 5, Gainward Phantom 560 GTX (the 560 will be replaced with one of the 760 due to better effeciency)


(Abit Fatal1ty FP9 IN SLI, C2Duo E8400, 6 GB Ram DDR2 800, far too less diskspace, Gainward Phantom 560 GTX broken need fixing)


Nostalgia: Amiga 1200, Tower Build, CPU/FPU/MMU 68EC020, 68030, 68882 @50 Mhz, 10 MByte ram (2 MB Chip, 8 MB Fast), Fast SCSI II, 2 CDRoms, 2 1 GB SCSI II IBM Harddrives, 512 MB Quantum Lightning HDD, self soldered Sync changer to attach VGA displays, WLAN

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Maybe take a look at the drive with WinDirStat. It might help finding the folder that is containing most of datafill.

... but I'm no expert

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Do you really care? You have nothing more interesting to do? All programs, games, browsers etc write lot of data. Don't worry about it.

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