Unless he has installed this software and never used it, it is possible to do what he said. Why?
Because the principle of P2P software is that when you download resources, you also upload some resources to others on the network. This will have an effect, the more people download, the faster it will be. When you download this resource, countless people like you send it to you on the internet. Of course, you should upload it to others when downloading. This is the origin of the slogan of P2P, I am for everyone and everyone is for me.
And you have never downloaded any resources. Theoretically, this software will not upload anything, because there is nothing to upload. That's what I said.
ADSL upload and download asymmetric, 4M.
The theoretical download speed of ADSL reaches 5 12K, but the upload speed is still 56K. Uploading above 35K will seriously affect the download speed, so P2P software will greatly affect the broadband speed.
So the measures you can take are:
1, I suggest you download it in your spare time, and cut the resources to other directories after downloading, so that P2P software will not upload it if it can't find the resources.
2. Once downloaded, quit these softwares, and some even shut down the corresponding processes.
Run taskmgr
3. Persuasion is ineffective, change to a router that can limit bandwidth and use hardware to limit his P2P download speed.