Windows 10: System mysteriously takes up remaining disk space.

Hello, reader! I am having an issue with my Windows 10 computer. Lately, it's been filling up for no reason, and when i delete anything, it goes right back to 0B free. I checked Settings->System->Storage, and almost 100GB are taken up by the system files.
This is my school computer, which makes it even worse. Does anyone have a solution?
I have tried running CCleaner, and calling my school's tech support Did it at like, 11 pm, so it didnt work.

:)

 

My disk space is gone

Hi John,

Thank you for posting the query on Microsoft Community.

I do appreciate your efforts and time.

Try to run theSystem Maintenance Troubleshooter.

• 
  Press Windows key + W and type
  Troubleshooting.
  
• 
  Select Troubleshooting.
  
• 
  Select view all on the top left corner.
  
• 
  Click System Maintenance,
  follow onscreen instructions.
  

I suggest you to run Check Disk which performs an analysis of the disk. Refer to the steps below:

• Press Windows key + X.
• Click on Command prompt (Admin).
• Type chkdsk /f and hit enter.

For reference:

Tips to free up drive space on your PC:

Tips to free up drive space on your PC

Hope this helps in resolving the issue. If the issue persists, do get back to us. We will be happy to assist you.

 

Disk space

Hi,

Windows create a special partition when installed on a new disk. This is usually under the name System Reserved. This partition contains these two important things:

• Boot Manager and Boot Configuration Data
• Startup files used for BitLocker Drive Encryption

These two should not be deleted as it is essential for booting and Bitlocker drive encryption. Regarding Windows upgrade, it will not take the allotted space for the System Reserved Partition. It will just take the remaining space outside of it. If you have
30 GB of space, and 13.5 GB is for the System Reserved, then whatever amount of space is remaining on the C drive less than all the installed apps and stored files, then that's what the Windows upgrade will take.

Hope this answers your query. Feel free to post back if you have other concerns.

 

hard disk space

Hello,

Taking into consideration that the free space is shrinking fast, it is possible that your system is creating restore points. To
delete restore points except for the recent one, simply follow the steps below:

• From the Cortana search box, type Disk Cleanup and click on the first result.
• Once the Disk Cleanup window appears, select the
  More Options tab.
• Under the System Restore and Shadow Copies column, click on the
  Clean up... button.

Once done with the steps, see if your disk space has expanded.

If you have further questions, please let us know.