Windows 10: System used 40GB of data past 30 days

In Data Usage, it says that my system has used 42GB of data the past 30 days. Is this normal?I have 160GB used total the past 30 days, 100GB to firefox, 6GB to javaw. I have also noticed my internet being slower than usual, especially in games.If this is not normal, what could be the cause of this? Viruses?

:)

 

Windows 10, 400 GB network data on "System" in the past 30 days

I've got a Windows 10 machine which, aside from playing some Mechwarrior Online from time to time, doesn't get heavily used. I sometimes leave the PC on overnight.

In the past day, I've used 12 GB of data. I don't stream movies or anything crazy like that.

In the past 30 days, my "System" application has used 419 GB of data.

How can I track and figure out what is causing this?

Check out the bottom entry for "System"

 

Data Usage for the past 30 days

Hi

Configuring data usage is no longer available in Windows 10. We suggest to either getting a program that measures data usage or contacting your ISP to check for options on measuring data usage.

Let us know if you need anything else. We're here to help.

 

Data Usage for the past 30 days

I have just changed ISP, which I think has caused me a problem which may be easy to solve.

I look at the Data Usage in Settings regularly just to cross check other forms of measurement. But since signing up to my new ISP the "Data Usage" module seems to have become disconnected and has been reducing day by day despite some heavy downloads from
Microsoft. My ethernet is recorded at 4 GB for the last 30 days when I know that yesterday alone there was about 3.2 GB downloaded.

How can I reconnect this module to my new router ? I have changed nothing that I am aware of, just replaced one router with another.

Thank You.

***Post moved by the moderator to the appropriate forum category.***