Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update. This build addresses two dozen minor bugs in the just-released version of Windows 10, including one in which a File Share Witness does not remove Server Message Block SMB handles, which causes a server to eventually stop accepting SMB connections, and another in which Night light mode may be turned off during display mode changes. Version , called the Windows 10 May Update, is the most recent feature update to Windows For more details, see our full review.
Close the sandbox, and the software or website vanishes. IT administrators can also extend the safety features of Windows Defender Application Guard beyond Edge via browser extensions for Chrome and Firefox and an app from the Microsoft store. When users browse to an untrusted site in Chrome or Firefox, the site will open in Edge, inside a virtual machine using Windows Defender Application Guard.
This build brings a major change to the way you update Windows There are a handful of issues with this build, including one in which when attempting to print from Microsoft Edge or other Universal Windows Platform UWP applications you may receive the error, "Your printer has experienced an unexpected configuration problem. There are several issues in the build, including one in which when attempting to print from Microsoft Edge or other Universal Windows Platform UWP applications you may receive the error "Your printer has experienced an unexpected configuration problem.
What IT needs to know : Because this is a security update, it should be applied relatively soon. This build fixes more than two dozen minor issues in the latest version of Windows 10, including one that caused some touch screens to stop working after restarts, and another that caused Internet Explorer Automation to fail in certain instances.
The build also adds several minor features, including one that allows the built-in Administrator account to run Microsoft Office setup after downloading the installer in Microsoft Edge. There are several issues in the build, including one in which Custom URI Schemes for Application Protocol handlers may not start the corresponding application for local intranet and trusted sites on Internet Explorer. And when attempting to print from Microsoft Edge or other Universal Windows Platform UWP applications, you may receive the error "Your printer has experienced an unexpected configuration problem.
This build fixes a handful of minor bugs in the latest version of Windows 10, including one that may cause authentication issues for Internet Explorer 11 and other applications that use WININET. There are several known issues in the build, including one in which Custom URI Schemes for Application Protocol handlers may not start the corresponding application for local intranet and trusted sites on Internet Explorer.
This build fixes several dozen minor issues with the latest version of Windows 10, including one that prevented users from configuring their screens for high-dynamic-range HDR video playback, and another that failed to register USB cameras correctly for Windows Hello after their initial setup. It also fixes an issue that caused Windows to reuse an expired Dynamic Host Configuration Protocol DHCP lease if the lease expired while the OS was shut down, and another that prevented the authentication credentials dialog from appearing when an enterprise web server attempted to connect to the internet.
DLL may have authentication issues, and another in which Custom URI Schemes for Application Protocol handlers may not start the corresponding application for local intranet and trusted sites on Internet Explorer. This build fixes several minor issues with the latest version of Windows 10 and includes security patches. Among other issues, it fixes a tracking and device calibration issue in Microsoft HoloLens that some people have experienced.
Although people may see an improvement 10 to 15 minutes after installing the update, Microsoft recommends resetting the holograms for best results. There are several issues in the build, including one in which after installing the update on machines that have multiple audio devices, applications that provide advanced options for internal or external audio output devices may stop working unexpectedly.
This build fixes several dozen minor issues with the latest version of Windows Among them is one that caused the Action Center to suddenly appear on the wrong side of the screen before appearing on the correct side and another that caused the screen to remain black after resuming from Sleep if the laptop lid was closed while the laptop was being disconnected from a docking station. There is one known issue in the build, in which Internet Explorer 11 may have authentication issues when two or more people use the same user account for multiple, concurrent login sessions on the same Windows Server machine.
This build fixes several minor issues with the latest version of Windows It also fixes a bug in Microsoft HoloLens that allows users to bypass the lock screen sign-in process in some workflows. There is one known issue in the build, in which after installing the previous build, KB, some users cannot load a webpage in Microsoft Edge using a local IP address.
Browsing fails or the webpage becomes unresponsive. This build fixes 20 minor issues with the latest version of Windows Among them is one in which File Explorer stopped working when you clicked the Turn On button for the timeline feature when the "Allow upload of user activities" group policy was disabled.
This build also fixed a problem that caused Remote Desktop Services to stop accepting connections after accepting several connections, and another one that caused Microsoft Edge to stop working with certain display drivers. There are two known issues in the build. In one, applications that use a Microsoft Jet database with the Microsoft Access 97 file format may fail to open if the database has column names greater than 32 characters.
This minor build has several security updates and addresses a single minor issue. One security update addresses a vulnerability in session isolation that affects PowerShell remote endpoints.
Windows 8, Windows and Outlook - HowTo-Outlook
For security reasons, from this build and onward, PowerShell remote endpoints cannot be configured to work with non-administrator accounts. This minor security update fixes an issue that may prevent the use of the Seek Bar in Windows Media Player when playing specific files. The issue does not affect normal playback. See the Security Update Guide for details. This non-feature update fixes 20 minor issues, including one that can cause mapped drives to fail to reconnect after starting and logging onto a Windows device, and another in which there are long delays when taking a photo with the Camera app in certain lighting conditions.
There are two known issues in this update, including one in which users may not be able to use the Seek Bar in Windows Media Player when playing specific files. This issue does not affect normal playback. Microsoft expects a fix to be available in mid-December. In addition, it provides protections against a subclass of speculative execution side-channel vulnerability known as Speculative Store Bypass CVE for AMD-based computers.
These protections are not enabled by default in the update. To turn the protections on after installing the update, follow the instructions in KB For Windows Server guidance, follow the instructions in KB In addition to the security updates, the build fixes several issues, including one that prevented users from signing in to a Microsoft account MSA as a different user if signing in a second time, and another that caused the on-screen keyboard to appear when running automated tests or when you install a physical keyboard.
There are two known issues in this update, one in which some users cannot set Win32 program defaults for certain app and file type combinations using the Open with Other issues fixed include one that caused a long delay in taking a photo using the Camera app in certain lighting conditions, and one that caused applications to lose IPv4 connectivity when IPv6 is unbound.
There are two known issues in this update: one in which some users cannot set Win32 program defaults for certain app and file type combinations using the Open with Go to the Security Update Guide for more details about these updates. Version , called the Windows 10 October Update, is the feature update that preceded the May Update.
Hardening Microsoft Windows 8.1 Update Workstations
What IT needs to know: There are few significant changes that affect IT in the Windows 10 October Update, other than New Microsoft Edge Group Policies that let admins enable and disable full-screen mode, printing, the favorites bar, and browser history saves. Windows 8 includes WDDM 1. The Desktop Window Manager now runs at all times even on systems with unsupported graphics cards; where DWM now also supports software rendering , and now also includes support for stereoscopic 3D content.
Other major features include preemptive multitasking with finer granularity DMA buffer, primitive, triangle, pixel, or instruction-level ,  reduced memory footprint, improved resource sharing, and improved timeout detection and recovery. Windows 8 adds support for printer driver architecture version 4. This adds a Metro friendly interface as well as changes the way the architecture was written. Windows PowerShell is Microsoft's task automation framework, consisting of a command-line shell and associated scripting language built on.
NET Framework. Windows 8 includes Windows PowerShell v3. Windows To Go is a feature exclusive to the Enterprise version of Windows 8 which allows an organization to provision bootable USB flash drives with a Windows installation on them, allowing users to access their managed environment on any compatible PC. The Action Center introduced in Windows 7 is expanded to include controls and notifications for new categories, such as SmartScreen status, drive health status, File History, device software updates, and the new Automatic Maintenance feature, which can periodically perform a number of maintenance tasks, such as diagnostics, updates, and malware scans to improve system performance.
Update to Windows 8.1 from Windows 8
PC Settings app in Windows 8 can be used to interact with Windows Update , although the traditional interface from Control Panel is retained. Windows 8 is able to distribute firmware updates on compatible devices and can be configured not to automatically download Windows updates over metered networks. It can report the amount of disk space in use by WinSxS folder and can also determine if a cleanup should be performed.
Windows 8 can now detect when a system is experiencing issues that have been preventing the system from functioning correctly, and automatically launch the Advanced Startup menu to access diagnostic and repair functions. For system recovery , Windows 8 introduced new functions known collectively as "Push-button reset",  which allows a user to re-install Windows without needing to use installation media.
The feature consists of "Reset" and "Refresh" functions, accessible from within the advanced boot options menu and PC Settings. Both of these options reboot the system into the Windows Recovery Environment to perform the requested operation; Refresh preserves user profiles, settings, and Windows Store apps, while Reset performs a clean installation of Windows. The reset function may also perform specialized disk wiping and formatting procedures for added security. Both operations will remove all installed desktop applications from the system. Users can also create a custom disk image for use with Refresh and Reset.
View a video to help you learn about the new features
Windows 8 introduces virtual smart card support. A digital certificate of a smart card can be stored onto a user's machine and protected by the Trusted Platform Module, thereby eliminating the need for the user to physically insert a smart card, though entering a PIN is still required. Virtual smart card support enables new two-factor authentication scenarios.
On Windows RT, logging in with a Microsoft account automatically activates passive device encryption, a feature-limited version of BitLocker which seamlessly encrypts the contents of mobile devices to protect their contents. On Windows 8. When a user signs in with a Microsoft account or on a supported Active Directory network, a recovery key is generated and saved directly to the user's account.
Unlike BitLocker, device encryption on xbased devices requires that the device meet the Connected Standby specifications which among other requirements, requires that the device use solid state storage and have RAM soldered directly to the motherboard and have a Trusted Platform Module TPM 2.
Under Provable PC Health, connected devices would periodically send various configuration-related information to a cloud service, which would provide suggestions for remediation upon detection of an issue. Windows 8 integrates Windows Live Family Safety into the operating system, allowing parents to restrict user activity via web filtering, application restriction, and computer usage time limits.
For example, an administrator can restrict a user account so that it can only remained signed in for a total time period of one hour. In previous versions of Windows, administrators could only restrict accounts based on the time of day. This signature check happens every time the computer is booted and prevents malware from infecting the system before the operating system loads. However, following the announcement, the company was accused by critics and free and open-source software advocates including the Free Software Foundation of trying to use the secure boot to hinder or outright prevent the installation of alternative operating systems such as Linux.
Microsoft denied that the secure boot requirement was intended to serve as a form of lock-in, and clarified that x86 certified systems but not ARM systems must allow secure boot to enter custom mode or be disabled. Trusted Boot is a feature of Windows boot loader and ensures the integrity of all Microsoft components loaded into memory, including ELAM, which loads last. Measured Boot can attest to the state of a client machine by sending details about its configuration to a remote machine. The feature relies on the attestation feature of the Trusted Platform Module and is designed to verify the boot integrity of the client.
Microsoft states this feature is meant to "allow critical software to persist even when the operating system has changed or been reinstalled in a 'clean' configuration"; specifically, anti-theft security software; but this has also been mis-used, including by Lenovo with their " Lenovo Service Engine " feature. Windows 8 includes an updated Windows Defender, an antivirus program that defends the system against a broad range of malware including computer viruses , computer worms and spyware.
Windows 8 includes various features that can be controlled through keyboard shortcuts. A storage space behaves like a physical disk to the user, with thin provisioning of available disk space. The spaces are organized within a storage pool, i. The process of adding new disks or replacing failed or older disks is fully automatic, but can be controlled with PowerShell commands. The same storage pool can host multiple storage spaces. Storage Spaces have built-in resiliency from disk failures, which is achieved by either disk mirroring or striping with parity across the physical disks.
Each storage pool on the ReFS filesystem is limited to 4 PB TB , but there are no limits on the total number of storage pools or the number of storage spaces within a pool.
A review in Ars Technica concluded that "Storage Spaces in Windows 8 is a good foundation, but its current iteration is simply too flawed to recommend in most circumstances. Storage Spaces was further enhanced in Windows Server R2 with tiering and caching support,  which can be used for caching to SSD ;  these new features were not added to Windows 8. Instead Windows 8. From Wikipedia, the free encyclopedia. Main article: Windows Store. Main article: Start screen.
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