Windows File System takes up too much storage day by day

Hello Đức. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.

Type Disk Cleanup in Search, Open Disk Cleanup, run it, when it reports choose the button for System Files, then run it again and clean up what it finds.
Tutorial here: http://windows.microsoft.com/en-us/windows-10/d...

I will give you steps to free up space and when necessary perform version Updates from external media by the most stable method that requires much less space than Windows Update.

First here are tips to free up space, including on smaller drives like the 32-gb SSD which they should have never allowed Windows 10 be installed upon:

https://www.theguardian.com/technology/askjack/...

https://www.pcworld.com/article/3040404/windows...

https://www.groovypost.com/howto/maximize-stora...

https://www.windowscentral.com/best-7-ways-free...

2) As more space becomes needed, you can move User folders into OneDrive and then set them to Files On Demand so they reside in the cloud and only have download links on the PC:

https://www.tenforums.com/tutorials/116029-turn...

https://www.pcworld.com/article/3233488/windows...

There's a way here to do this with all the User folders I've been using for ten years to sync them via OneDrive to all my other devices:
http://answers.microsoft.com/en-us/windows/wiki...

3) You can also offload User folders (Documents, Music, Pictures, etc) to another partition or drive you can install on the same PC (even in the DVD drive bay) as shown in this tutorial: https://www.windowscentral.com/how-move-default... This will not affect speed if C is on an SSD and the other drive is not. I would not move apps or program files or speed off SSD will be affected.

4) You could also install a larger SSD/HDD. SSD's are around $50 per 256gb and easy to install with videos online for almost any PC model. Then clone the old drive http://www.ghacks.net/2015/08/29/the-best-way-t... or do a Clean Install.

5) Some combination of the above should make enough space to install Windows Updates. But I'd focus on the latest Version update because successfully installing it will bring along all Windows Updates and also resolves almost all other problems since it reinstalls Windows keeping your files and programs in place.

Install the Media Creation Tool on another PC to create bootable media or download the ISO to stick or disk, transfer it back to the target PC to open the media or click to mount the ISO, right click Setup file to Run as Administrator. This avoids needing the space to download the Upgrade and it's staging files. http://windows.microsoft.com/en-us/windows-10/m...

6) Another option is to do the the best possible Clean Install in this link which will stay that way as long as you stick with the tools and methods given, has zero reported problems, and is better than any amount of money could buy: http://answers.microsoft.com/en-us/windows/wiki....

This will give you back all but 15gb of the drive.

There is also an automated Fresh Start that reinstalls WIndows while shedding corrupting factory bloatware, saves your files, but doesn't clear the drive to get it cleanest: https://www.howtogeek.com/265054/how-to-easily-...

I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved

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Thanks for your suggestions. Firstly, Windows Disk Cleanup shows Windows Update Cleanup occupied only 6MB and I think these additional files should be deletable because they are cumulative update files downloaded every time I checked for updates.

Secondly, I don't want to perform those methods since it's pretty inconvenient for me at the moment. All I want to do is to take back 10GB of storage that the updates installed in my computer because they abnormally occupied a lot of space, like this post:

There are various ways to delete Windows Update cache here:
https://answers.microsoft.com/en-us/windows/for.... This will remove the ability to uninstall those Updates but that's not a great concern.

Is it giving you a System Files choice the first time you run Disk Cleanup, it should be in the empty space under the selection Window? This gets rid of the big files like WIndows Update or C:\Windows.old which can be huge.

If that's all System Files finds then it's pretty clean already.

Run a full Disk Check with Repair switch here:
http://www.howtogeek.com/howto/windows-vista/gu...

Is Storage Sense turned on in Settings > System > Storage?

If you use Hibernate then the C:\Hiberfile will be the same size as your installed RAM, disable it here to turn it off:
https://www.groovypost.com/howto/enable-or-disa.... You can still use sleep and shutdown. But if you value hibernate like I do you may want to keep it.

Have you thought about buying a bigger SSD, clone your present drive to it and then extend it across the new horizon?

Storage Sense has been turned on in my computer.

Yes. I'm considering buying a new computer next year but what I'm asking is that is there anyway to reduce the system file to 20GB. Normally, before the recent reset of Windows 10, system file often took up 20-25GB of my storage. Actually my C: Drive still has 122GB of storage but I want to limit it to 140GB. Last month it was 140GB.

That's plenty of extra space. Disk space is like RAM, it's wasted if it's not used. The cushion you need is far less than that. Don't worry, be happy.

When you get time look over the articles and other steps I gave in my first post as they have helped thousands of people adjust to much smaller drives than yours and contain every tip for saving space, even if you don't need to! :wink: