Patrick Marshall answers your personal technology questions each week.

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Q: Why do some sites simply unsubscribe you, while others ask for the email address you wish to unsubscribe? Very annoying!
— Judy B

A: It’s sad but true that some emails that offer you an option to unsubscribe are simply trying to confirm that your email is a real address that someone is checking. If you respond, they’ll know it’s a “live” address. In short, don’t click on “unsubscribe” unless you have reason to believe the sender is legitimate.

Q: I have a HP LaserJet 3390 printer running on Windows 10 via a simple home network. It worked just fine for several years under previous versions of Windows until I upgraded to version 10.

It seems that most of the time, but not always, when a Windows update is completed the computer cannot find the printer and I get a message stating that the printer is offline even when the printer is on and set as the default. To resolve this problem, I have to enter the Control Panel and then add a printer. During that process the printer is not listed, so I have to search for it and eventually it appears on the add list. Once selected and added, then I have to remove the previous copy of the printer to make things work again.

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Is there a better way to resolve this ongoing problem so this procedure does not have to be repeated following Windows updates?

— Joseph Chasteen

A: Every update of an operating system is potentially a challenge for older devices. Make sure you’ve got the latest drivers installed for that printer. It’s possible, of course, that the vendor may at some point stop updating the drivers for the newest versions of operating systems. At that point you may encounter problems like this even if you have the latest drivers.

If the problem abides you’ll want to contact HP tech support.

Q: I have a Dell Latitude E6510 laptop running Windows 10 and an HP Officejet 6500 wireless printer. Some weeks ago now, after printing the queue would not clear. The next print job could not proceed. I open the queue and cancel or delete the recently printed job. Amazingly, it takes about 10 minutes to delete the job but then I can proceed. The next print job, the same thing happens.

I have run the troubleshooter and have reinstalled the driver but neither has helped.
I went online and it seems that this is not an uncommon problem. I tried the suggested cures and now I cannot print at all. The message is “Your printer has experienced a configuration problem.” Any suggestions?

— Larry Pesce, Carnation

A: Been there. Operations across networks with multiple devices are often problematic.
When I run into this problem, I do the following: First, power down and then restart the printer. Second, cancel all print jobs in Windows. Reboot Windows and start the print job from the beginning.

Q: Is there a way to download pictures from my Samsung Galaxy S8 Active & Galaxy S8 to my laptop? I tried using the USB cord hoping my laptop would recognize it as a new device. It did and I was able to open the phone but there were no pictures in the photo folder.

— Jack

A: It sounds like your phone is correctly connecting to your computer. So all that remains is to find where those photos are stored on your phone.

When your first connect the phone to the computer it offers two folders to explore: Phone and Card. The latter only appears if you have a microSD card installed. The default location for photos taken with your phone’s camera is Phone/DCIM/Camera. If you don’t find the photos there, it may be that you have redirected them to your microSD card.