Electronics expert Q&A

Use your camera's photo-e-mail feature, which will resize the larger image. Or open the file in image-editing software, such as Adobe Photoshop Elements or Apple iPhoto. Select the photo, then choose "e-mail photo" or "e-mail attachments." You'll have various options to choose from, but the most important is the size of the file. Use the smallest-sized option for the fastest uploading times. Click "OK" or "compose." The software should open your e-mail application and attach the downsized photo to a new message.

I'm considering buying a 3D television. Can I wear my prescription eyeglasses under the 3D spectacles I'll need?

Most 3D glasses we've seen can be worn over prescription glasses. As 3D-television technology catches on, prescription 3D eyewear will probably appear. For now, before you buy a 3D set, check the fit of the glasses.

How can I send and receive faxes with my computer?

If your computer has a modem you can connect to a phone line, you can send and receive faxes. For Windows XP, click "Add or Remove Programs" on the control panel and select Fax Services. Windows 7 and some versions of Windows Vista use Windows Fax and Scan. Access it from the main All Programs menu. Vista Home Premium lacks a fax program, but you can use one from a third party. For a Mac computer, go to Print & Fax under System Preferences. If you have an all-in-one printer/fax hooked to a phone line, see whether the device can transmit and receive faxes directly from the computer. Or, try a fee-based service such as those at www.efax.com or www.fax.com.

Should I upgrade from my current Vista operating system to the new Windows 7?

Yes, but only if your computer can handle it. (To find out, go to www.microsoft.com/windows/windows-7/get/upgrade-advisor.aspx.) Windows 7 is more stable than Vista, it generates fewer false alerts, and its user interface, utilities, and file organization are better. If you bought a Vista computer after June 26, 2009, contact the manufacturer to see whether you qualify for a free upgrade. Microsoft advises against upgrading from XP.

How can I uninstall the security software on my Windows computer? I don't want to pay for tech support.

Security software as a category is known to be tricky to install and uninstall. Our advice: The next time you restart your computer, repeatedly press the F8 key after the initial power-on message appears on the screen and choose "safe mode." That move prevents some services from starting and might allow you to complete the uninstallation of the software. Otherwise, you might have to pay for tech support from the software maker.