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OneDrive (previously SkyDrive, Windows Live SkyDrive and Windows Live Folders) is a cloud storage, file hosting service that allows users to sync files and later access them from a web browser or mobile device. Users can share files publicly or with their contacts, publicly shared files do not require a Microsoft account to access. It is part of the suite of online services formerly known as Windows Live. The current storage limit for OneDrive users is 1 TB for Office 365 paid subscribers or 5 GB of free storage.〔 ==History== At its launch the service, known as ''Windows Live Folders'' at the time (with a codename of ''SkyDrive''), was provided as a limited beta available to a few testers in the United States. On August 1, 2007, the service was expanded to a wider audience. Shortly thereafter, on August 9, 2007, the service was renamed Windows Live SkyDrive and made available to testers in the United Kingdom and India. SkyDrive was initially available in 38 countries and regions., later expanded to 62. On December 2, 2008, the capacity of an individual SkyDrive account was upgraded from 5 GB to 25 GB, and Microsoft added a separate entry point called ''Windows Live Photos'' which allowed users to access their photos and videos stored on SkyDrive. This entry point allowed users to add "People tags" to their photos, download photos into Windows Photo Gallery or as a ZIP file, as well as viewing Exif metadata such as camera information for the photos uploaded. Microsoft also added the ability to have full-screen slide shows for photos using Silverlight. SkyDrive was updated to "Wave 4" release on June 7, 2010, and added the ability to work with Office Web Apps (now known as Office Online), with versioning. In this update, due to the discontinuation of Windows Live Toolbar, the ability to synchronise and share bookmarked web links between users via SkyDrive was also discontinued. However, users were still able to use Windows Live Mesh, which replaced the previous Windows Live Favorites, to synchronize their favorites between computers until its discontinuation in February 2013. In June 2010, users of Office Live Workspace, released in October 2007, were migrated to ''Windows Live Office''. The migration included all existing workspaces, documents, and sharing permissions. The merger of the two services is a result of Microsoft's decision to merge its Office Live team into Windows Live back in January 2009, as well as several deficiencies with Office Live Workspace, which lacked high-fidelity document viewing and did not allow files to be edited from within the web browser. Office Live Workspace also did not offer offline collaboration and co-authoring functionality – instead documents were "checked out" and "checked in", though the service did integrate with SharedView for real-time screen sharing. On June 20, 2011, Microsoft overhauled the user interface for SkyDrive, built using HTML5 technologies. The updated version featured caching, hardware acceleration, HTML5 video, quick views, cleaner arrangement of photos and infinite scrolling. Microsoft also doubled the file size limit from 50 MB to 100 MB per file. With this update, Microsoft consolidated the different entry points for SkyDrive, such as ''Windows Live Photos'' and ''Windows Live Office'', into one single interface. Files and folders shared with a user, including those in Windows Live Groups, were also accessible in the new interface. On November 29, 2011, Microsoft updated SkyDrive to make sharing and file management easier, as well as HTML5 and other updates. This update also allowed users to see how much storage they had (and how much they had used), a feature that had been removed in the previous update as part of the redesign. On December 3, 2011, Microsoft released SkyDrive apps for iOS and Windows Phone, which are available in the App Store and Windows Phone Store respectively. On April 22, 2012, Microsoft released a SkyDrive desktop app for Windows Vista, 7 and 8, as well as OS X, allowing users to synchronize files on SkyDrive, much like Windows Live Mesh, and to "fetch" files on their computer via the web browser. In addition, SkyDrive also provided additional storage available for purchase and reduced the free storage space for new users to 7 GB (from 25 GB). Existing users were offered a free upgrade offer to retain their 25 GB of free storage. The updated SkyDrive also allowed files up to 2 GB in size (uploaded via the SkyDrive desktop app). The update also brought additional features such as Open Document Format (ODF) capability, URL shortening services and direct sharing of files to Twitter. On August 14, 2012, Microsoft announced a new update for SkyDrive which brought changes and improvements to SkyDrive.com, SkyDrive for Windows desktop and OS X, and the SkyDrive API as part of Live Connect. For SkyDrive.com, the updates brought a new "modern" design for the web service consistent with Outlook.com, and along with the UI update the service also received improvements such as instant search, contextual toolbar, multi-select in thumbnail view, drag-and-drop files into folders, and sorting improvements. For the SkyDrive for Windows desktop and OS X applications, the update brought new performance improvements to photo uploads and the sync experience. The update also improved the SkyDrive API with the removal of file type restrictions, ability to upload images in their full resolution, as well as a new SkyDrive file picker for opening and saving files. On August 28, 2012, Microsoft released a SkyDrive app for Android on Google Play store.〔 On September 18, 2012, Microsoft also introduced a recycle bin feature on SkyDrive and announced that SkyDrive will allow users to create online surveys via Excel Web App. Microsoft became involved in a lawsuit with British television broadcaster BSkyB for using the word "Sky", resulting in a High Court ruling in June 2013 that the service's brand breached BSkyB's trademark. On July 31, 2013, in a joint press release between BSkyB and Microsoft, it was announced that a settlement had been reached and as a result the SkyDrive name would be dropped. BSkyB allowed Microsoft to continue using the brand "for a reasonable period of time to allow for an orderly transition to a new brand". On January 27, 2014, Microsoft announced that "SkyDrive" would become, respectively, "OneDrive". The re-branding took effect across most platforms on February 19, 2014.〔 On June 18, 2015, Microsoft launched an improved design of OneDrive for the web. On November 2, 2015, Microsoft revealed that it will be removing the unlimited storage plan for Office 365 Home, Personal and University packages and that the free Onedrive storage will be reduced from 15 GB to only 5 GB; this change also affects people who have subscribed to 100 GB and 200 GB paid plans as those plans will be replaced by a 50 GB plan which will cost $1.99 per month. These Onedrive changes are scheduled to go live in Early 2016. These changes caused major controversy with the users and have since setup petitions to try and get Microsoft to reverse the plans. For example, as of November 21, 2015, over 70,000 people took to the official OneDrive uservoice to voice their concerns. According to Microsoft these changes were done because people were abusing the service by using OneDrive for PC backups, storing entire movie collections and DVR recordings. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「OneDrive」の詳細全文を読む スポンサード リンク
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