Windows 10: "System" is using an insane amount of internet bandwidth for the past 20 days

"System" has been using a crazy amount of data since December 2nd. It is now to the point where it is using my ENTIRE bandwidth. I really need help with this.

I have tried metering my connection, restarting my router, restarting my computer, my account sync is turned off, turning off ALL bandground applications. One thread suggested using the windows firewall to block regsvr32.exe in both \system32\ and \SchCache\.

None of these things did anything to deter the constant downloading by "system".



:)

 

Does Windows 10 reserve 80% of internet bandwidth for the system?

no it is NOT a myth the default usage for bandwidth is indeed 80%.

here is a copu paste of the gpedit.msc txt:

"
Determines the percentage of connection bandwidth that the system can reserve. This value limits the combined bandwidth reservations of all programs running on the system.

By default, the Packet Scheduler limits the system to 80 percent of the bandwidth of a connection, but you can use this setting to override the default.

If you enable this setting, you can use the "Bandwidth limit" box to adjust the amount of bandwidth the system can reserve.

If you disable this setting or do not configure it, the system uses the default value of 80 percent of the connection.

Important: If a bandwidth limit is set for a particular network adapter in the registry, this setting is ignored when configuring that network adapter."

note what it states about default package scheduler. so that is a fact NOT a myth my friend

 

Microsoft Minesweeper consuming excess internet bandwidth

Hi,

To resolve your concern, we suggest that you reset your apps to restart or reset the network bandwidth that they consume per app.

Here's how:

• Press Windows + R on the keyboard.
• Type msconfig, and then click OK.
• On the General tab, click the Normal Startup, and then click OK.
• When you are prompted to restart the computer, click Restart.

If the issue persist, we suggest that you contact your Internet Service Provider for additional bandwidth on your network.

If you have comments and suggestions, you can have them posted on our
Feedback Hub.

Let us know how it goes.

 

Does Windows 10 reserve 80% of internet bandwidth for the system?

It IS a myth.

I am quite familiar with the text in the dialog, having read it on more than one occasion. The wording is not the best and can lead to misunderstandings. In technical writing it is difficult to describe something in a way that is both technically accurate and yet easy to understand. Microsoft user level documentation tends toward the latter and even computer professionals sometimes it wrong. I have seen this lead to lengthy discussions on forums where nothing is resolved.

Note the first sentence in the text:
"Determines the percentage of connection bandwidth that the system can reserve."
By default no bandwidth is reserved but QOS aware programs can reserve a portion of bandwidth if needed. But even then other programs have the full bandwidth. Only if the reserving program is actively using bandwidth does the reservation come into effect.

Back in XP days there was so much confusion about this that Microsoft had an article that accurately described how things worked and debunking the myth. Unfortunately it seems that it no longer exists. We still have the explanation by Raymond Chen mentioned in post #8. He has been a developer with Microsoft since Windows 95 days.

I have tried the QOS changes, including some with values larger then 20%. I noticed no changes in bandwidth.

Edit: It seems that old myths like this never die. They are continually being spread around the internet and leading to endless confusion.