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Read in Entirety:

A non-exhaustive list of risks for any custom Windows ISO (such as the ones presented) include but are not limited to some or all of the following:

  • Malicious hidden keystroke registration and uploading to third party servers – includes e-mail addresses, accounts and passwords; harvesting of personal data.

  • Uploading of: - personal files; -details of personal files; -(lists of) opened files, programs, settings changed, websites visited; - memory dumps.

  • Use of system for mining cryptocurrency or re-deployment/spreading of malicious programs. Generic backdoors.

No party except Microsoft can vouch 100% for the ISOs’ behaviors (and of course security). These ISOs are not endorsed in any way, not even partially, by Microsoft.


The ISOs provided by Revision are meant to speed up the process of optimization.

We're NOT responsible for any direct or indirect consequences/damage resulting from their use.

Always do and test backups beforehand through multiple means, copies or on multiple (storage)devices.

ReviOS - 20H2 S1.0

23rd of November 2020

➕ Excellent stability and compatibility

➕ Great performance and privacy

➕ Easily updatable and maintainable

➕ Better security than predecessors

➕ Direct successor to 2004 S1.0 - beating it in every aspect

➖ Slightly bulkier than 1709 in size (GB)

MD5: c5d10be2af390c6da3cd769bfacd59fa

SHA-256: 38d7dd7abe52e94f5d008c8541f5735c6099fcd8a9df7cd96b7908180045fa40

ReviOS - 1709 S1.0

1st of August 2020

➕ Great compatibility

➕ Great privacy

➕ Extended FaceIt support

➖ Doesn't support Xbox Game Pass (2004 S1.0 does)

Input Method Editors for Asian languages are not currently supported

MD5: 17AEE7534162ACE3C34FAF6389A82F05

SHA-1: CC3E5E3ABACA70052476F050A224D5B7DB66DC27

ReviOS - 2004 S1.0

12th of June 2020

➕ Good stability and compatibility

➕ Better performance than previous builds

➕ Decent privacy

➖ Slightly larger than other builds in size (GB)

➖ Not pre-compressed

➖ Superseded by ReviOS 20H2 S1.0

MD5: 2FCA939326F6EE3214C04C2C6A5A16EF

SHA-1: 227FA7E08C1AAA308DD92C52FADCCE29F661BC2A

Legal notice

By downloading any of these images, you agree to Microsoft’s Terms of Service with respect to (5.) Authorized Software and Activation. None of these pre-tweaked image files are pre-activated, to activate your Windows install, you must use a genuine Microsoft key.

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