Windows 10: C drive got extra stuff

Hello,
On turning on my computer, took a note of C: drive proprties, it was 31.7 GB.Not installed any updates, not downloaded anything, just installed on a usb stick the
"portable apps. platform" and some portable apps there.When done, I noticed that C: properties gained 1.2 GB.Used ccleaner and disk cleaner - they did not find anything.Where are these extra files / whatever, and how to clean them.
Answers will be appreciated.
Thanks
Motim

I'm a big fan of a program called WinDirStat to show you what's on your hard drive and what's taking up the space. It's available through the PortableApps.com platform you mention, too.

DeaconFrost said:

I'm a big fan of a program called WinDirStat to show you what's on your hard drive and what's taking up the space. It's available through the PortableApps.com platform you mention, too.

Hello,
Thanks for the answer.
I know what is on my drive, used the program and could not find anything new the size of almost 1.2 GB. As I wrote before, no new installation, no update/s.
One hour its 31.7 GB, an hour or so later its 32.9 GB, I wonder.
I even searched what files were "new born" according to the date but did not find any.
Thanks again
Motim

Motim said:

I know what is on my drive, used the program and could not find anything new the size of almost 1.2 GB. As I wrote before, no new installation, no update/s.
One hour its 31.7 GB, an hour or so later its 32.9 GB, I wonder.
I even searched what files were "new born" according to the date but did not find any.

You can't see everything that's on your drive. There's one folder in particular you don't have access to. It's the hidden system folder on the root of the drive: 'System Volume Information'.

One of the things this folder is used for is to store the files and data for restore points, and a 1.2GB increase is about what I'd expect for creating a new restore point.

While you cannot (and shouldn't) directly access this folder, you can indirectly manipulate it by controlling the functions that use it. In this case it would be System Protection. With System Protection turned on a new restore point is created automatically about once a week.

Go to the Control Panel and look for 'System Protection' in 'System'. Here you can set the upper limit for space allocated to restore points, delete all restore points, turn system protection on or off, or even make a new restore point.
Turn On or Off System Protection for Drives in Windows 10

If you'd prefer just to delete all but the latest restore point, then use Disk Cleanup's 'clean up system files', Option Two here:
Delete System Restore Points in Windows 10