Disk 100%

Brand new problem. My PC is lagging and freezing and whenever I look to the task manager I see the same: DISK 100% or higher than 90... ( Screenshot by Lightshot ) If anyone know how to fix this, please tell me. Any information will be useful. Thanks!

Hi there,task manager,process tab,click on disk,upload snip with at least first ten processes,lets have a look...

Sry for slovenian language.
Raziskovalec=Explorer
gostitelj storitev=host service
Screenshot: Screenshot by Lightshot
Screenshot2: Screenshot by Lightshot

You wanted first ten. Here you go: Screenshot by Lightshot

Can anyone help please?

Is this a freshly installed OS?Maybe Windows is still "setting" things up,compressing and indexing is always disk intensive.Do you have "search"and "indexing" features enabled?
If not,have you scanned your system with at least two different AV's?

I installed windows 1 month ago. I don't know what you mean if i have 'search' and 'index' features enabled. I don't have any antivirus except windows defender

We need to pinpoint,what exactly under the process "system" is using your disk.It could be the Windows search feature,searching over and over a corrupt file for example.
Would you feel comfortable disabling the search service,via control panel,administrative tools,services,double click on search,stop the service and setting it to disabled?

I already disabled it. Screenshot by Lightshot
Any other solution?

Try superfetch service,see how the system behaves,you can always revert to its default or previous state,you get the idea,try any suspicious service,try disabling system restore,its not easy finding the culprit.Do you have any 3rd party backup application installed?
While at it,give Malwarebytes a shot,keep it to assist the inbuilt Defender.

Superfetch is disabled. Here, look this Screenshot by Lightshot

Btw now disk is better, I don't know why but.. it's less than 50%, but i'm not sure if it will stay

Disable disk defragment for a while,system restore,maybe user profiles,if you are the only user on the machine,you are doing fine...

I can't open disk defragment, i don't know why when i click on it just nothing happens. How can I disable system restore? I have only 1 profile

System restore is easy to enable-disable,this PC, (or whatever you have it to) ,properties,system protection,highlight drives and configure.
The point is,you might have more issues than the high disk usage when you are stating that you cant open the defragmentation GUI,sounds more like a system corruption,you might need to perform a repair install.Have you been "messing" with services before,got any "windows tweaker" application installed?

No i don+t have any windows tweaker installed

I will download windows tweaker

No,please dont,you got it wrong,you are not supposed to use any of those "tweakers",more damage than good!

Ok, i don't even know how to use it. Anything other?

Last time you reduced your "disk usage' to 50%,which process was it,which have you tried since then?Help me help you!
Download processexplorer ,install it,put your cursor on the columns,right click,select columns,go to process I/O tab,check everything related to reads and writes,upload snippet,lets see who is using what and how much!