Connected Standby
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InstantGo or Modern Standby (formerly Connected Standby) is a Microsoft specification for
Windows 8 Windows 8 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on August 1, 2012; it was subsequently made available for download via MSDN and TechNet on August 15, 2012, and later to ...
(and later) hardware and software that aims to bring smartphone-type power management capabilities to the PC platform, as well as increasing physical security.


Description

The specification describes a Microsoft proprietary standard for Windows 8 software and hardware that developers and hardware vendors can optionally comply with to enable devices to be turned on and off instantly. It also allows the operating system to continue performing background tasks, such as updating content from apps, when a device is not being used. Devices must be able to turn on in less than 500 milliseconds. The hardware requirements extend to battery life, in that systems must not drain more than 5% of battery capacity while idle over a 16-hour period. It requires the following: * A firmware flag indicating support for the standard * The boot volume must not use a
hard disk drive A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magne ...
* Support for NDIS 6.30 by all network devices * Passive cooling on standby * Trusted Platform Module 2.0 There are additional security-specific requirements, for example for memory to be soldered to the motherboard to prevent
cold boot attack In computer security, a cold boot attack (or to a lesser extent, a platform reset attack) is a type of side channel attack in which an attacker with physical access to a computer performs a memory dump of a computer's random-access memory (RAM) b ...
vectors that involve removing memory from the machine , as well as support for
Secure Boot UEFI (Unified Extensible Firmware Interface) is a set of specifications written by the UEFI Forum. They define the architecture of the platform firmware used for booting and its interface for interaction with the operating system. Examples of ...
. On Windows 8.1, supporting InstantGo and having a
Trusted Platform Module Trusted Platform Module (TPM, also known as ISO/IEC 11889) is an international standard for a secure cryptoprocessor, a dedicated microcontroller designed to secure hardware through integrated cryptographic keys. The term can also refer to a ...
(TPM) 2.0 chip will allow the device to use a passive device encryption system. Compliant platforms also enables full BitLocker Device encryption. A background service that encrypts the whole system which can be found in 'Settings'>'Device'>'About' page in Windows 10.


Limitations

Systems that support this specification are incapable of booting legacy BIOS operating systems. PCs with Modern Standby also cannot manually enter the Sleep power state and OEMs will often block S3 and S4 power states at the firmware level.


Issues

Microsoft's Modern Standby has experienced bugs that cause battery drain issues while the laptop is supposedly suspended. This has prevented some reviewers from recommending Windows laptops.Fix Battery Drain and Laptop Heats Up During Sleep Mode by Tweaking Modern Standby Policies
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See also

*
Advanced Configuration and Power Interface Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto co ...
(ACPI) *
Always On, Always Connected Windows RT is a mobile operating system developed by Microsoft. It is a version of Windows 8 or Windows 8.1 built for the 32-bit ARM architecture (ARMv7). First unveiled in January 2011 at Consumer Electronics Show, the Windows RT 8 oper ...
*
Trusted Computing Group The Trusted Computing Group is a group formed in 2003 as the successor to the Trusted Computing Platform Alliance which was previously formed in 1999 to implement Trusted Computing concepts across personal computers. Members include Intel, AMD, ...
(TCG) *
Unified Extensible Firmware Interface UEFI (Unified Extensible Firmware Interface) is a set of specifications written by the UEFI Forum. They define the architecture of the platform firmware used for booting and its interface for interaction with the operating system. Examples of ...
(UEFI)


References


Further reading

* * * {{cite document, format=PDF, publisher=Intel, date=26 Feb 2013, url=http://software.intel.com/en-us/articles/windows-8-store-app-connected-standby-whitepaper, title=Windows* 8 Store App - Connected Standby Whitepaper, ref={{harvid, Intel-2013 BIOS Windows 8