I have an OptiPlex 5070.  I'm using Dissenter browser.  I attempted to download H&R Block tax software.  It got hung up (stalled) and I tried to stop the download process.  I called H&R Block for assistance and they sent me another link to download.  I followed all instructions but it did the same thing as the first time.  I am a novice at computers.  I need help knowing how to determine if both programs are trying to upload simultaneously.  It seems that they are due to the error messages I've received.  I took screenshots of the last time I tried to install.  Please help.  Thanks.