Q: I like to leave my PC screen windows open and arranged a certain way. The open windows include Excel and Word files, photos, a Web browser and a command prompt (C:\). But when I leave the PC for a while, Windows 10 rearranges these open windows. How can I prevent that?
JIM CARLSON, Tucson, Ariz.
A: This problem has been around for several years, but Microsoft is expected to fix it in Windows 11, which will be a free upgrade to Windows 10.
While the problem supposedly affects only computers that use more than one monitor (another name for computer screen), it also appears to affect PCs that have received software driver updates for a monitor. (A software driver allows the monitor to communicate with Windows 10.)
Here's what happens: When you return to your PC, Windows 10 awakens from "sleep mode" (an energy-saving feature) and looks for the monitor it should "wake up." To do that, it looks at a list inside Windows 10 that includes every monitor that's ever been connected to that PC. It then picks what seems to be the correct monitor.
If Windows 10 picks the right monitor from the list, the open windows on your screen will appear just as they did before the PC entered sleep mode. But if the operating system picks the wrong monitor, any open windows may be rearranged (resized or moved).
Unfortunately, Windows 10 seems to treat any monitor with an updated software driver as a "new" monitor. As a result, even a PC that has never used more than one monitor may have a list of several that Windows 10 can choose from – sometimes with bad results.
There are two ways you can try to fix this problem: