Windows 10: Something unknow is taking disk space in computer

I had 8 GB free few days before, but now, there is only 4GB free disk space. I have tried almost eveything, deleting apps, disk cleanup, etc, to free up space. It freed up some space, but again that space got occupied. How to fix this, and get back my disk space?

:)

 

disk space reduced after media creation tool

Hi Sarah,

One of the possible reasons why your disk space was reduced is due to an unallocated disk space on your partitions. For us to isolate your concern, we suggest that you check your device's partition. To do this, follow the steps provided below:

• Type Computer Management on Ask me anything and press
  Enter.
• Select Storage and click on Disk Management.
• Send us a screenshot.

We look forward to your response.

 

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.

 

How to delete error reports taking up disk space?

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