WINDOWS 8 SOFTWARE

Upgrade helps cut cell distractions while driving

Microsoft alters system for larger devices

A driver will be able to set his or her cell phone to a driving mode, which will silence incoming calls and texts.

NEW YORK — Microsoft Corp. is updating its Windows software for cell phones to accommodate larger devices and make it easier for motorists to reduce distractions while driving.

It’s the third update to Windows Phone 8 software since the system’s release a year ago. Devices with this update will start appearing in the coming weeks, and older phones will be eligible for a free upgrade too.

Something that may appeal to motorists: a new driving mode automatically will silence incoming calls and texts so that you can focus on the road. You can configure the feature to send out a reply to say that you’re driving.

It can be activated automatically when the phone is linked wirelessly with a Bluetooth device in the car, such as a headset. Apple has a “Do Not Disturb” feature for iPhones, but that needs to be turned on manually.

What the driving mode won’t do, however, is block outgoing calls or texts. And there will be ways to override it.

The feature won’t stop a teen from texting while driving, but it will help reduce distractions for those who want that, said Greg Sullivan, director for Microsoft’s Windows Phone business.

The new update also will allow for better resolution to accommodate larger phones.

The system supports a maximum resolution of 1280 pixels by 768 pixels, which is adequate for phones with screens no larger than 5 inches on the diagonal. But video and image quality degrades when stretched out on larger phones, such as a 6.3-inch Android phone from Samsung Electronics Co.

The layout for larger phones also will change. Phones may now sport a third column of tiles, for instance. Contact lists and other features will fit in more information. That’s a contrast to Android, where text and images simply get bigger with larger screens, without fitting in more content.

Microsoft’s Windows Phone software holds a distant third place behind Apple Inc.’s iOS and Google’s Android, with a worldwide market share of 3.7 percent in the second quarter, according to research firm IDC.

But shipments of Windows Phone devices grew 78 percent to 8.7 million in the April-to-June period, compared with the same time a year ago.