11/24/2018 2:57 PM THR2010 Top ten reasons to use Windows 10 Current Branch vs. Long Term Servicing Branch Todd J. Furst Microsoft Technology Center (MTC), Solution Architect © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Why to never use Windows 10’s Long Term Servicing Branch 11/24/2018 2:57 PM Why to never use Windows 10’s Long Term Servicing Branch Todd J. Furst Microsoft Technology Center (MTC), Solution Architect © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

11/24/2018 2:57 PM Many thanks to… Michael Niehaus, Director Product Marketing (Microsoft) John Wilcox, WaaS Evangelist (Microsoft) 100+ customers met with over the last year… © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Satya Nadella on Growth Mindset 11/24/2018 2:57 PM Satya Nadella on Growth Mindset “We need to be willing to lean in to uncertainty, take risks and move quickly when we make mistakes, recognizing failure happens along the way to mastery.” © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

What is Windows as a Service? 11/24/2018 2:57 PM What is Windows as a Service? © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Windows as a Service (WaaS) The process of a release MS Story 11/24/2018 2:57 PM Windows as a Service (WaaS) The process of a release Windows Insider Preview Channel Evaluate new features Provide feedback on changes, issues New Windows 10 Semi-Annual Channel Release (Formerly Current Branch) Deploy to pilot audiences Validate and prepare for broad deployment Deploy to all audiences, in waves to reduce risk 6+ months of active development 18 months to validate, deploy, and use each release The process repeats… © 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Windows as a Service (WaaS) Predictable and clear timeframes 11/24/2018 Windows as a Service (WaaS) Predictable and clear timeframes 2017 2018 2019 2020 Windows 10 1703 Windows 10 1709 Windows 10 1803 Windows 10 1809 Plan & Prepare Pilot 18 months for each release Broad Deployment MICROSOFT CONFIDENTIAL © 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION

Customer WaaS Feedback Tech Ready 15 11/24/2018 Customer WaaS Feedback We can do this – will take work to transform the organization We are already doing this We can’t do this – it is impossible to run a deployment project for every semi-annual Windows 10 release We deployed LTSB to everyone – we are now “undoing” that and deploying the semi-annual releases We were breached – we are adopting the semi-annual releases © 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

+500M DEVICES RUNNING WINDOWS 10 “WITH THE ‘WINDOWS AS A SERVICE’ MODEL THAT’S BEEN INTRODUCED WITH WINDOWS 10, WE HAVE REDUCED OUR OPERATING SYSTEM DEPLOYMENT TIME BY 75%.” DOROTHY STEPHENSON, DIRECTOR, ITS, KIMBERLY-CLARK https://blogs.windows.com/business/2016/11/01/kimberly-clark-embraces-windows-10-as-a-service

Top 10 Reasons to Use CB 11/24/2018 2:57 PM © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #1 New world of security Ransomware Zero-Day attacks Targeted phishing Users click on everything Nation State attacks GDPR & other regulations... © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Threat protection over time Attackers take advantage of periods between releases Game change with Windows and Software as a Services Disrupt and out innovate our adversaries by design Capability Protection Gap Time Product Release Threat sophistication

Threat protection over time Attackers take advantage of periods between releases Game change with Windows and Software as a Services Disrupt and out innovate our adversaries by design Capability Protection Gap Time Product Release Threat sophistication

Windows 7 Security features 11/24/2018 Windows 7 Security features Windows Update BitLocker Admin and Monitoring Trusted Platform Module Windows Firewall BitLocker SmartScreen BitLocker to Go Device protection Threat resistance Identity protection Information protection Breach detection investigation & response PRE-BREACH POST-BREACH © 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION

Windows 10 Security on Legacy or Modern Devices 11/24/2018 Windows 10 Security on Legacy or Modern Devices (Upgraded from Windows 7 or 32-bit Windows 8) Windows Trusted Boot Windows Information Protection Windows Update Microsoft Edge Windows Hello Companion Devices BitLocker Admin and Monitoring Windows Defender Trusted Platform Module Windows Firewall Windows Hello BitLocker Windows Defender Advanced Threat Protection SmartScreen BitLocker to Go Device protection Threat resistance Identity protection Information protection Breach detection investigation & response PRE-BREACH POST-BREACH © 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION

Windows 10 Security on Modern Devices 11/24/2018 Windows 10 Security on Modern Devices (Fresh Install or upgraded from 64-bit Windows 8) Virtualization Based Security Device Encryption UEFI Secure Boot Device Guard Credential Guard Windows Information Protection Windows Trusted Boot Security Management Windows Update Microsoft Edge Windows Hello Companion Devices BitLocker Admin and Monitoring Conditional Access Windows Defender Trusted Platform Module Windows Firewall Windows Hello BitLocker Windows Defender Advanced Threat Protection SmartScreen BitLocker to Go Device protection Threat resistance Identity protection Information protection Breach detection investigation & response PRE-BREACH POST-BREACH © 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #1 New world of security Question – Current Branch is updated 2x a year with new security capabilites. How often does LTSB get updated? Best Practice – CISO, CIO, etc. need to make the call whether CB or LTSB is used. © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #2 500M+ Windows 10 devices Question – Of the 500M devices, are most running Current Branch or LTSB? © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #3 Windows 10 Silicon Support Policy Supporting the latest processor and chipsets on Windows - Windows Lifecycle FAQ, https://support.microsoft.com/en-us/help/18581/lifecycle-faq-windows-products Windows 10 Embracing Silicon Innovation, https://blogs.windows.com/windowsexperience/2016/01/15/windows-10-embracing-silicon-innovation/#ZTriEZ2OEDjWO60k.97 © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #3 Windows 10 Silicon Support Policy Supporting the latest processor and chipsets on Windows - Windows Lifecycle FAQ, https://support.microsoft.com/en-us/help/18581/lifecycle-faq-windows-products Windows 10 Embracing Silicon Innovation, https://blogs.windows.com/windowsexperience/2016/01/15/windows-10-embracing-silicon-innovation/#ZTriEZ2OEDjWO60k.97 © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #4 Surface Device Support Surface device compatibility with Windows 10 Long-Term Servicing Branch (LTSB) https://docs.microsoft.com/en-us/surface/surface-device-compatibility-with-windows-10-ltsb © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #4 Surface Device Support Surface device compatibility with Windows 10 Long-Term Servicing Branch (LTSB) https://docs.microsoft.com/en-us/surface/surface-device-compatibility-with-windows-10-ltsb © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #4 Surface Device Support Surface device compatibility with Windows 10 Long-Term Servicing Branch (LTSB) https://docs.microsoft.com/en-us/surface/surface-device-compatibility-with-windows-10-ltsb © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #5 Office Office 365 ProPlus &Windows 10 Aligned semi-annual releases Guidance Use Office 365 ProPlus with Windows 10 CB Use Office 2016 MSI with Windows 10 LTSB https://support.office.com/en-us/article/Change-management-for-Office-365-clients-9d9fc2d3-23e1-4309-8ae6-12ef5b6a8dcd?ui=en-US&rs=en-US&ad=US © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #ZZ Office Office 365 ProPlus &Windows 10 Aligned semi-annual releases Guidance Use Office 365 ProPlus everywhere LTSB devices use Office 2016 MSI https://support.office.com/en-us/article/Change-management-for-Office-365-clients-9d9fc2d3-23e1-4309-8ae6-12ef5b6a8dcd?ui=en-US&rs=en-US&ad=US © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #6 Current Branch and LTSB have differences LTSB is missing... Edge, Cortana, Windows Store, etc. All new capabilities in 1703/1709/etc. © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #7 Upgrades: Windows 10 Current Branch and LTSB Windows 10 Servicing only applies to Current Branch The following solutions do not work with LTSB Configuration Manager Servicing Rings Windows Update for Business © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #7 Upgrades: Windows 10 CB vs LTSB Windows 10 Servicing only applies to CB The following do not work with LTSB Configuration Manager Servicing Rings Windows Update for Business © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #8 Only Current Branch is optimized for upgrades Current Branch can use ESD files (differential coming soon) LTSB requires full size media to upgrade © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Windows as a service Optimizing feature updates Expected twice per year Minimum of 18 months of servicing for each release Deployed over an extended period of time, allowing traffic to be spread out (unlike quality updates which often have short deadlines) Complete set of operating system files ESD files are about 30% smaller! Highly recommended to use ESD files (provided by WU or WSUS) instead of media (through ISOs) Deployed like an update, performs an in-place upgrade Takes 30-90 minutes, depending on hardware

Windows as a service Optimizing feature updates Support for differential upgrades Determine what files have changed, then only download those Potential savings of about 35% over current ESD sizes Targeting the feature update planned for later in 2017 Management and patching tools will need to be updated to support this new capability End user experience is unchanged Deployed like an update, performs an in-place upgrade Takes 30-90 minutes, depending on hardware Note: Percentage savings are estimated and can vary due to many factors.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #9 Microsoft is working with ISVs to support Windows 10 Current Branch & Office 365 ProPlus Exceptions for LTSB scenarios (e.g., PC connected to manufacturing equipment) SAP GUI is supporting Windows 10 as operating system https://blogs.msdn.microsoft.com/saponsqlserver/2015/10/08/sap-gui-is-supporting-windows-10-as-operating-system/ https://blogs.sap.com/2015/10/14/sap-with-windows-10-and-office-365-office-2016/ © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #ZZ Microsoft is working with ISVs to support Windows 10 CB and Office 365 ProPlus Exceptions for LTSB scenarios (e.g., PC connected to manufacturing equipment) SAP GUI is supporting Windows 10 as operating system https://blogs.msdn.microsoft.com/saponsqlserver/2015/10/08/sap-gui-is-supporting-windows-10-as-operating-system/ https://blogs.sap.com/2015/10/14/sap-with-windows-10-and-office-365-office-2016/ © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Top 10 reasons to use Current Branch 11/24/2018 2:57 PM Top 10 reasons to use Current Branch #10 Readiness & compatibility tools designed for Current Branch Ready for Windows Windows Analytics (e.g., Upgrade Readiness) © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Compatibility in Windows 10 MS Story 11/24/2018 2:57 PM Compatibility in Windows 10 Get links to Windows 10 ISV support statements Get usage information for every app version, and use that to target testing Microsoft is actively engaged with ISVs, to ensure full support for Windows as a service http://www.readyforwindows.com © 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

(previously Upgrade Analytics) Introducing Windows Analytics A suite of tools to reduce deployment and support costs Upgrade Readiness (previously Upgrade Analytics) Update Compliance (In Preview) In Development Plan upgrades by identifying devices that are ready and identify and resolve app and driver compatibility blockers. Ensure update and antimalware compliance with timely reports for all your devices (even those on the road). Watch for additional analytics solutions currently in development.

Where do we go from here? 11/24/2018 2:57 PM © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Call to Action Reach out to: Tech Ready 15 11/24/2018 Call to Action Reach out to: Microsoft account team Certified Microsoft Partner Leverage the online resources: Ignite Hands-on-Labs TechNet Virtual Labs (https://technet.microsoft.com/en-us/virtuallabs) Windows 10 deployment and management lab kit (https://technet.microsoft.com/en-us/windows/mt604890.aspx) © 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Call to Action Reach out to: Tech Ready 15 11/24/2018 Call to Action Reach out to: Microsoft account team Certified Microsoft Partner Leverage the online resources: Ignite Hands-on-Labs TechNet Virtual Labs (https://technet.microsoft.com/en-us/virtuallabs) Windows 10 deployment and management lab kit (https://technet.microsoft.com/en-us/windows/mt604890.aspx) © 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

WaaS Call to Action Reach out to: Tech Ready 15 11/24/2018 WaaS Call to Action Reach out to: Microsoft account team Certified Microsoft Partner Leverage the online resources: Ignite session recordings & Hands-on-Labs TechNet Virtual Labs (https://technet.microsoft.com/en-us/virtuallabs) Windows 10 deployment and management lab kit (https://technet.microsoft.com/en-us/windows/mt604890.aspx) Windows Analytics - Upgrade Readiness & ReadyforWindows (https://www.microsoft.com/en-us/WindowsForBusiness/windows-analytics) © 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Satya Nadella on Growth Mindset 11/24/2018 2:57 PM Satya Nadella on Growth Mindset “We need to be willing to lean in to uncertainty, take risks and move quickly when we make mistakes, recognizing failure happens along the way to mastery.” © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Related content Speaker: Michael Niehaus (multiple sessions) Tech Ready 15 11/24/2018 Related content Speaker: Michael Niehaus (multiple sessions) Windows Analytics: Plan and manage Windows 10 upgrades and feature updates with Upgrade Readiness Friday, September 29 10:45 AM - 12:00 PM OCCC 414 © 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Please evaluate this session Tech Ready 15 11/24/2018 Please evaluate this session From your Please expand notes window at bottom of slide and read. Then Delete this text box. PC or tablet: visit MyIgnite https://myignite.microsoft.com/evaluations Phone: download and use the Microsoft Ignite mobile app https://aka.ms/ignite.mobileapp Your input is important! © 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

11/24/2018 2:57 PM © Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.