Da heck is happening in my history class

When running anti-virus software , what could be a reason where recipitent is not guaranteed that data being streamed will not get interrupted?

To move a file or folder in microsoft windows, you can click and hold down the left mouse button while moving your mouse pointer to the location you want the file or folder to be, which is also known as.

Will do anything for brainlest so can you guys me out i will try my best to you out