Where is the space on the C drive going?

Question

System administration

Windows 7 on a laptop. The disk is divided into logical. 100 GB is allocated for the system on drive C.
Recently, immediately after the system reboot, free space is displayed no more than 1-2 GB.
Further, in the process of work, the free space begins to "evaporate" rather quickly, as a result, less than 100 MB remain, and sometimes even 1 (one!) MB.
Regular disk cleanup allows you to free up a few MB.
I also use cleaning with 360 Total Security - it usually finds excess garbage from 500 MB to 1 GB. I perform cleaning, writes that I have freed up, for example, 300 MB, I look at the disk and see that only 200 MB is free. But they also "evaporate" after a short time (10-20 minutes).
What can so actively eat disk space?

Answer 1

I also use cleaning with 360 Total Security - it usually finds excess garbage from 500 MB to 1 GB.

This is known malware
. Disk space is taken up by -
1) Basic system files and program files.
2) Windows and software updates. Excessive volume occupied by updates is cleared by regular methods.
3) Swap file and hibernation file - depending on the settings and the amount of RAM, they can take from one to several tens of gigabytes.
4) Shadow copies - depending on the settings, they can take tens and hundreds of gigabytes. Their size can be seen in the shadow copy settings, or through vssadmin. They are located in the System Volume Information folder, their size and the size of this folder cannot be viewed in Explorer.
5) User files - located in the folders %userprofile%\AppData
6) Temporary files - located in the folders %userprofile%\AppData\Local\Temp as well as in %SystemRoot%\Temp and some others. They can be cleaned manually.
7) Banal user files that he leaves on the desktop, in the "my documents" folder, etc.
8) The "downloads" folder, where gigabytes of unnecessary downloads are often stored for years.
This is not a complete list.
As a rule, the user does not have rights to view many system files, and he cannot see the size they occupy.
The system needs free space to work, programs too.
Make sure that at least 20-30 gigabytes are always free on the system disk, preferably more.

Answer 2

www.steffengerlach.de/freeware

Answer 3

• Disk space is occupied by programs in Program Files (x86) .
  To find the culprit, use the Process Monitor program (formerly FileMon ) or its equivalent. It keeps track of all the work with the disk, so for a clear picture you will need to create filters for good applications, otherwise you will drown in the logs.
  In general, leaving so little disk space is a bad idea. Especially if it's NTFS (and what else?), because for fast NTFS to work, there must be at least 12% free space on the disk. And if the free space reaches zero, then this means that programs and services begin to generate errors when they try to write.
  Recommendation . Do not use logical drives in Windows. If you still need logical drives, then at least increase the size of drive C. This can be done, for example, usingMiniTool Partition Wizard . But ideally, you need to merge all logical drives into one.

Answer 4

Corruption. Vinduta plunder.
The swap file can still consume memory. And so, to be honest, your problem is not where the memory goes (it is spent quite within acceptable aisles), but that you left very little of it for the system to work.

Answer 5

https://windirstat.net/

Answer 6

In the properties of drive C, select "disk cleanup", then "clean up system files". In the window that appears, select the files you need to delete (updates, previous windows installations, etc.)

Answer 7

1. Clean Windu from "shit". Stateek sea.
2. Set disk usage and see who eats the place, what to do "see point 1"

Answer 8

Just install Linux instead of Windows (=