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| {{Infobox Windows
| | #REDIRECT [[Progressbar 95]] |
| |name=Windows 95
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| |codename=Chicago
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| |logo=Windows 95 wordmark.svg
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| |image=Windows95-RTM-Desktop.png
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| |family=9x
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| |latestbuild=4.03.1216 (OSR 2.5)
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| |version=4.00, 4.03
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| |arch=x86 (PC/AT, PC-98, FM Towns)
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| |releasedate=1995-08-24
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| |support=2001-12-31
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| |replaces=[[Windows 3.1x]]
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| |replaced-by=[[Windows 98]]
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| }}
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| '''Windows 95''' (codenamed ''Chicago'') is a consumer version of [[Microsoft Windows]] released by Microsoft in 1995. It was designed to be the successor of [[Windows 3.1x|Windows 3.1]] and would be replaced by [[Windows 98]]. Microsoft ended support for Windows 95 on 31 December 2001. It improved upon 16-bit Windows by introducing a hybrid 16/32-bit kernel and eliminating the need for an existing installation of MS-DOS, making it a standalone operating system (running alongside MS-DOS). Microsoft focused on improving the usability of Windows with technologies such as Plug-and-Play, long file names (VFAT), the Start Menu, an updated Desktop, Internet Explorer, and Mail, built-in networking, and virtual device drivers. Many of the paradigms introduced with Windows 95 remain in use today.
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| It was a revolutionary update for Windows, and also the first concerted effort by Microsoft to listen to consumers. Although it was still built upon the solid, if out-dated, foundations of MS-DOS, the average user never saw the MS-DOS prompt unless they wanted to. Windows NT was too intensive for most computers of the time, and it was not until after the release of Windows 95 that Win32 applications were widely used and supported.
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| ==Development==
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| [[File:Windows-95-1993-01-Demo.png|thumb|A UI mockup depicting an early form of the Cairo/Chicago shell|230px]]
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| The development of Windows 95 started in 1992 shortly after the release of [[Windows 3.1x|Windows 3.1]]. Pre-release [[Windows 3.1x#Windows for Workgroups 3.1|Windows for Workgroups 3.1]] builds were forked into the Cougar project, which attempted to build a 32-bit protected mode kernel to be used in the next Windows-on-DOS release (at the time often called Windows 4.0 or Windows 93). The Cougar project was later merged with Jaguar (known as MS-DOS 7.0, also slated for a separate release) into Chicago, which became Windows 95. The Chicago project additionally took a few components from the Cairo project (meant for Windows NT), including the Cairo user interface, and integrated it into the Chicago shell. Internal Microsoft documents from 1992 occasionally refer to the Chicago project as ''Windows NT Lite''.<ref>http://antitrust.slated.org/www.iowaconsumercase.org/011607/5000/PX05522.pdf</ref>
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| The first two builds known to exist are the Usability Testing Builds from January 1993, seen in a Microsoft video.<ref>http://channel9.msdn.com/posts/Windows-95-Usability-Testing-1993</ref> The first leaked build is 58s, known as PDK/M4 from August 1993, followed by 73f and 73g (PDK2/M5 from November 1993), 81 (January 1994), 90c (March 1994), and finally, beta 1 builds 99, 116 and 122 (May 1994), beta 2 (October 1994) and RC (throughout 1995).
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| == List of known builds ==
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| {{builds legend}}
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| ===Pre-Chicago===
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| {{BLItem Fake|Windows 95 build 28|3.2.028}}
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| {{BLItem Unconfirmed|Windows 95 build 33|3.2.033}}
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| ===Pre-Milestone 4===
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| {{BLItem Fake|Windows 95 build 21i|4.00.21i}}
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| {{BLItem Fake|Windows 95 build 26|4.00.26}}
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| {{BLItem Confirmed|Windows 95 Usability Testing Builds|Usability Testing Builds}}
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| {{BLItem Unconfirmed|Windows 95 build 31|4.00.31}}
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| {{BLItem Confirmed|Windows 95 build 34|4.00.34}}
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| {{BLItem Fake|Windows 95 build 36|4.00.36}}
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| {{BLItem Fake|Windows 95 build 38|4.00.38}}
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| {{BLItem Unconfirmed|Windows 95 build 40|4.00.40}}
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| {{BLItem Confirmed|Windows 95 build 40e|4.00.40e}}
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| {{BLItem Fake|Windows 95 build 45|4.00.45}}
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| {{BLItem Fake|Windows 95 build 47|4.00.47}}
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| {{BLItem Fake|Windows 95 build 56|4.00.56}}
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| {{BLItem Confirmed|Windows 95 build 57|4.00.57}}
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| ===Milestone 4===
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| {{BLItem Confirmed|Windows 95 build 58g|4.00.58g}}
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| {{BLItem Confirmed|Windows 95 build 58j|4.00.58j}}
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| {{BLItem Leaked|Windows 95 build 58s|4.00.58s (PDK/M4)}}
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| ===Milestone 5===
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| {{BLItem Confirmed|Windows 95 build 61|4.00.61}}
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| {{BLItem Confirmed|Windows 95 build 70|4.00.70}}
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| {{BLItem Fake|Windows 95 build 73|4.00.73}}
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| {{BLItem Leaked|Windows 95 build 73f|4.00.73f}}
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| {{BLItem Leaked|Windows 95 build 73g|4.00.73g (PDK2/M5)}}
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| {{BLItem Fake|Windows 95 build 78|4.00.78}}
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| {{BLItem Leaked|Windows 95 build 81|4.00.81 (internal M5)}}
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| ===Beta 1 / Milestone 6===
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| {{BLItem Confirmed|Windows 95 build 84|4.00.84}}
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| {{BLItem Confirmed|Windows 95 build 86|4.00.86}}
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| {{BLItem Confirmed|Windows 95 build 87|4.00.87}}
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| {{BLItem Confirmed|Windows 95 build 89|4.00.89}}
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| {{BLItem Leaked|Windows 95 build 89e|4.00.89e}}
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| {{BLItem Confirmed|Windows 95 build 90|4.00.90}}
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| {{BLItem Leaked|Windows 95 build 90c|4.00.90c}}
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| {{BLItem Confirmed|Windows 95 build 91|4.00.91}}
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| {{BLItem Confirmed|Windows 95 build 92|4.00.92}}
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| {{BLItem Confirmed|Windows 95 build 92d|4.00.92d}}
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| {{BLItem Leaked|Windows 95 build 99|4.00.99}}
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| {{BLItem Confirmed|Windows 95 build 102|4.00.102}}
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| {{BLItem Confirmed|Windows 95 build 103|4.00.103}}
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| {{BLItem Confirmed|Windows 95 build 106|4.00.106}}
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| {{BLItem Confirmed|Windows 95 build 108|4.00.108}}
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| {{BLItem Leaked|Windows 95 build 116|4.00.116}}
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| {{BLItem Leaked|Windows 95 build 122|4.00.122 (Beta 1/M6)}}
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| {{BLItem Confirmed|Windows 95 build 156|4.00.156}}
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| {{BLItem Confirmed|Windows 95 build 162|4.00.162}}
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| {{BLItem Confirmed|Windows 95 build 163|4.00.163}}
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| {{BLItem Confirmed|Windows 95 build 165|4.00.165}}
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| {{BLItem Confirmed|Windows 95 build 166|4.00.166}}
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| {{BLItem Confirmed|Windows 95 build 167|4.00.167 (Beta 1.2/M6.2)}}
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| {{BLItem Confirmed|Windows 95 build 170|4.00.170}}
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| {{BLItem Leaked|Windows 95 build 180|4.00.180 (Beta 1.3/M6.3)}}
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| {{BLItem Leaked|Windows 95 build 189|4.00.189 (Beta 1.4/M6.4)}}
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| ===Beta 2 / Milestone 7===
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| {{BLItem Unconfirmed|Windows 95 build 190|4.00.190}}
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| {{BLItem Confirmed|Windows 95 build 197|4.00.197}}
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| {{BLItem Leaked|Windows 95 build 216|4.00.216}}
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| {{BLItem Leaked|Windows 95 build 222|4.00.222}}
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| {{BLItem Leaked|Windows 95 build 224|4.00.224 (Beta 2/M7)}}
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| ===Beta 3 / Milestone 8 / Final Beta===
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| {{BLItem Leaked|Windows 95 build 225|4.00.225 (East Asian Beta 1)}}
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| {{BLItem Leaked|Windows 95 build 263|4.00.263}}
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| {{BLItem Leaked|Windows 95 build 267|4.00.267}}
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| {{BLItem Leaked|Windows 95 build 275|4.00.275}}
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| {{BLItem Leaked|Windows 95 build 285|4.00.285}}
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| {{BLItem Leaked|Windows 95 build 286|4.00.286}}
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| {{BLItem Leaked|Windows 95 build 302|4.00.302}}
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| {{BLItem Unconfirmed|Windows 95 build 304|4.00.304}}
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| {{BLItem Confirmed|Windows 95 build 305|4.00.305}}
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| {{BLItem Unconfirmed|Windows 95 build 306|4.00.306}}
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| {{BLItem Leaked|Windows 95 build 310|4.00.310}}
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| {{BLItem Leaked|Windows 95 build 311|4.00.311}}
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| {{BLItem Leaked|Windows 95 build 314|4.00.314}}
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| {{BLItem Leaked|Windows 95 build 318|4.00.318}}
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| {{BLItem Unconfirmed|Windows 95 build 322|4.00.322}}
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| {{BLItem Leaked|Windows 95 build 323|4.00.323}}
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| {{BLItem Leaked|Windows 95 build 324|4.00.324}}
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| {{BLItem Leaked|Windows 95 build 328|4.00.328}}
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| {{BLItem Confirmed|Windows 95 build 329|4.00.329}}
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| {{BLItem Leaked|Windows 95 build 331|4.00.331}}
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| {{BLItem Leaked|Windows 95 build 337|4.00.337}}
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| {{BLItem Leaked|Windows 95 build 342|4.00.342}}
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| {{BLItem Leaked|Windows 95 build 345|4.00.345}}
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| {{BLItem Leaked|Windows 95 build 347|4.00.347 (Beta 3/M8)}}
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| ===Release Candidate 1===
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| {{BLItem Unconfirmed|Windows 95 build 401|4.00.401}}
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| {{BLItem Leaked|Windows 95 build 405|4.00.405}}
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| {{BLItem Leaked|Windows 95 build 411|4.00.411}}
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| {{BLItem Leaked|Windows 95 build 420|4.00.420}}
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| {{BLItem Confirmed|Windows 95 build 427|4.00.427}}
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| {{BLItem Leaked|Windows 95 build 431|4.00.431}}
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| {{BLItem Leaked|Windows 95 build 435|4.00.435}}
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| {{BLItem Leaked|Windows 95 build 440|4.00.440}}
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| {{BLItem Leaked|Windows 95 build 445|4.00.445}}
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| {{BLItem Leaked|Windows 95 build 450|4.00.450}}
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| {{BLItem Leaked|Windows 95 build 456|4.00.456}}
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| {{BLItem Leaked|Windows 95 build 462|4.00.462}}
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| {{BLItem Leaked|Windows 95 build 468|4.00.468}}
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| {{BLItem Confirmed|Windows 95 build 469|4.00.469}}
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| {{BLItem Leaked|Windows 95 build 474|4.00.474}}
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| {{BLItem Leaked|Windows 95 build 480|4.00.480}}
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| {{BLItem Leaked|Windows 95 build 484|4.00.484}}
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| {{BLItem Leaked|Windows 95 build 490|4.00.490}}
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| {{BLItem Leaked|Windows 95 build 499|4.00.499}}
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| {{BLItem Leaked|Windows 95 build 501|4.00.501}}
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| {{BLItem Unconfirmed|Windows 95 build 502|4.00.502}}
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| ===Localization Builds===
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| {{BLItem Leaked|Windows 95 build 708|4.00.708}}
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| {{BLItem Leaked|Windows 95 build 720|4.00.720}}
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| {{BLItem Leaked|Windows 95 build 810|4.00.810}}
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| {{BLItem Leaked|Windows 95 build 812|4.00.812}}
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| {{BLItem Leaked|Windows 95 build 818|4.00.818}}
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| {{BLItem Leaked|Windows 95 build 842|4.00.842}}
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| ===Pre-RTM===
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| {{BLItem Unconfirmed|Windows 95 build 852|4.00.852}}
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| {{BLItem Leaked|Windows 95 build 950 r-2|4.00.950 r-2}}
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| {{BLItem Leaked|Windows 95 build 950 r-3|4.00.950 r-3}}
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| {{BLItem Confirmed|Windows 95 build 950 r-4|4.00.950 r-4}}
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| ===Release to Manufacturing (RTM) ===
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| {{BLItem Leaked|Windows 95 build 950 r-6|4.00.950 r-6}}
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| {{BLItem Leaked|Windows 95 build 950 r-7|4.00.950 r-7 (Hebrew RTM)}}
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| ===OEM Service Release 1 and Service Pack 1===
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| {{BLItem Leaked|Windows 95 build 950a|4.00.950a}}
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| ===OEM Service Release 2===
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| ====Beta====
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| {{BLItem Confirmed|Windows 95 build 990|4.00.990}}
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| {{BLItem Leaked|Windows 95 build 1009|4.00.1009}}
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| {{BLItem Unconfirmed|Windows 95 build 1030|4.00.1030}}
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| {{BLItem Leaked|Windows 95 build 1034|4.00.1034}}
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| {{BLItem Leaked|Windows 95 build 1043|4.00.1043}}
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| {{BLItem Unconfirmed|Windows 95 build 1048|4.00.1048}}
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| {{BLItem Leaked|Windows 95 build 1068|4.00.1068}}
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| {{BLItem Unconfirmed|Windows 95 build 1070|4.00.1070}}
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| {{BLItem Leaked|Windows 95 build 1078|4.00.1078}}
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| {{BLItem Leaked|Windows 95 build 1089|4.00.1089}}
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| ==== Release Candidate====
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| {{BLItem Leaked|Windows 95 build 1094|4.00.1094}}
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| {{BLItem Leaked|Windows 95 build 1111 (RC)|4.00.1111 (RC)}}
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| ====RTM====
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| {{BLItem Leaked|Windows 95 build 1111|4.00.1111 (950 B)}}
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| ===OEM Service Release 2.1===
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| ====Beta====
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| {{BLItem Leaked|Windows 95 build 1107|4.03.1107}}
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| {{BLItem Leaked|Windows 95 build 1113|4.03.1113}}
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| {{BLItem Leaked|Windows 95 build 1132|4.03.1132}}
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| {{BLItem Leaked|Windows 95 build 1154|4.03.1154}}
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| {{BLItem Leaked|Windows 95 build 1156|4.03.1156}}
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| ==== Release Candidate====
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| {{BLItem Leaked|Windows 95 build 1163|4.03.1163}}
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| ====RTM====
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| {{BLItem Leaked|Windows 95 build 1212|4.03.1212 (950 B)}}
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| {{BLItem Leaked|Windows 95 build 1214|4.03.1214 (950 B)}}
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| ===OEM Service Release 2.5===
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| {{BLItem Leaked|Windows 95 build 1216|4.03.1216 (950 C)}}
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| ==References==
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| <references />
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| [[Category:Windows versions]]
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