Windows 10: WTH? My computer downgraded itself overnight and is now asking me to update to 2021-02!

/u/FloralObsession · Feb 15, 2021

Long story short, I did a refresh on my computer last week which messed up a lot of stuff. Had a hard time updating to v. 2021-01, but finally got it done. Yesterday, things started being strange, like my color settings and sound not being loud enough, etc.

Evidently, it has reset itself back to 1909. Woke up this morning and my keyboard isn't working properly. Did some research and all my updates were for 1909. WTF? So I did winver and I'm back to 1909.

I checked updates and they are all for 1909, and one is to update to 2021-02. Should I even bother?

I'm so aggravated.

submitted by /u/FloralObsession
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:)

AbAppletic · Feb 15, 2021

bsod after downgrading from windows 10 to windows 7

Hello there, tom.
I would try these:

Get your Windows 7 media device and reinstall Windows

Try auto-repair

Follow these steps:

Put in your Windows 10 media device, boot into the USB

Select your language and keyboard input, then click next.

Click "Repair this computer"

Go to "Advanced options"

click system restore

Select a restore point before you downgraded to Windows 7.

Hope I helped!

Brink · Feb 15, 2021

Updates - TCP/IP:  CVE-2021-24074, CVE-2021-24094, and CVE-2021-24086

Today Microsoft released a set of fixes affecting Windows TCP/IP implementation that include two Critical Remote Code Execution (RCE) vulnerabilities (CVE-2021-24074, CVE-2021-24094) and an Important Denial of Service (DoS) vulnerability (CVE-2021-24086). The two RCE vulnerabilities are complex which make it difficult to create functional exploits, so they are not likely in the short term. We believe attackers will be able to create DoS exploits much more quickly and expect all three issues might be exploited with a DoS attack shortly after release. Thus, we recommend customers move quickly to apply Windows security updates this month.

The DoS exploits for these CVEs would allow a remote attacker to cause a stop error. Customers might receive a blue screen on any Windows system that is directly exposed to the internet with minimal network traffic.

It is essential that customers apply Windows updates to address these vulnerabilities as soon as possible. If applying the update quickly is not practical, workarounds are detailed in the CVEs that do not require restarting a server. These three vulnerabilities are unique and require separate workarounds depending on the exposure of an affected system; however, they can be thought of in terms of Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6) solutions.

The IPv4 workaround simply requires further hardening against the use of Source Routing, which is disallowed in Windows default state. This workaround is documented in CVE-2021-24074 and can be applied through Group Policy or by running a NETSH command that does not require a reboot. The IPv6 workarounds are documented in CVE-2021-24094 and CVE-2021-24086, and require blocking IPv6 fragments, which may negatively impact services with dependencies on IPv6.

Note: IPv4 Source Routing requests and IPv6 fragments can be blocked on an edge device, such as a load balancer or a firewall. This option can be used to mitigate systems with high-risk exposure and then allow the systems to be patched following their standard cadence.

These vulnerabilities were discovered by Microsoft as part of our continual focus on strengthening the security of our products. At this time, we have no evidence that these vulnerabilities were known to any third party. These vulnerabilities result from a flaw in Microsoft’s implementation of TCP/IP and affect all Windows versions. Non-Microsoft implementations are not affected.

It is important that affected systems are patched as quickly as possible because of the elevated risk associated with these vulnerabilities, and downloads for these can be found in the Microsoft Security Update Guide.  Customers who have automatic updates enabled are automatically protected from these vulnerabilities.

We recommend that you apply the updates released February 9, 2021 with priority to all of your Windows devices, as they address CVE-2021-24074, CVE-2021-24094 and CVE-2021-24086. Here is what you need to know:

If you are running a supported version of Windows and have automatic updates enabled, you are automatically protected and do not need to take any further action.

If you are managing updates on behalf of your organization, you should download the latest updates from the Microsoft Security Update Guide and apply those updates to your Windows devices as soon as possible.

If you are unable to apply updates right away, look at the CVEs for the workaround mitigations to use in the short term until you can deploy the updates.

If you are running an unsupported version of Windows, we recommend that you upgrade to the current version of Windows to benefit from the latest security protections.
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Source:

https://msrc-blog.microsoft.com/2021...ecting-tcp-ip/

https://docs.microsoft.com/en-us/win...ge-center#1556

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NICK ADSL UK · Feb 15, 2021

Microsoft January 2021 Security Updates

January 2021 Security Updates

The January 2021 security release consists of security updates for the following software:

Microsoft Windows

Microsoft Edge (EdgeHTML-based)

Microsoft Office and Microsoft Office Services and Web Apps

Microsoft Windows Codecs Library

Visual Studio

SQL Server

Microsoft Malware Protection Engine

.NET Core

.NET Repository

ASP .NET

Azure

Please note the following information regarding the security updates:

CVE-2020-0689 has been re-released. For further information see Security update for Secure Boot DBX: January 12, 2021.

For information regarding enabling Windows 10, version 1909 features, please see Windows 10, version 1909 delivery options. Note that Windows 10, versions 1903 and 1909 share a common core operating system with an identical set of system files. They will also share the same security update KBs.

Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog.

For information on lifecycle and support dates for Windows 10 operating systems, please see Windows Lifecycle Facts Sheet.

A list of the latest servicing stack updates for each operating system can be found in ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update.

Updates for Windows RT 8.1 and Microsoft Office RT software are only available via Windows Update.

In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.

Customers running Windows 7, Windows Server 2008 R2, or Windows Server 2008 need to purchase the Extended Security Update to continue receiving security updates. See 4522133 for more information.

The following CVEs have FAQs with additional information. Please note that this is not a complete list of CVEs for this release.

CVE-2020-26870

CVE-2021-1636

CVE-2021-1637

CVE-2021-1643

CVE-2021-1644

CVE-2021-1645

CVE-2021-1647

CVE-2021-1648

CVE-2021-1656

CVE-2021-1663

CVE-2021-1669

CVE-2021-1670

CVE-2021-1672

CVE-2021-1676

CVE-2021-1677

CVE-2021-1694

CVE-2021-1696

CVE-2021-1699

CVE-2021-1707

CVE-2021-1708

CVE-2021-1711

CVE-2021-1713

CVE-2021-1714

CVE-2021-1715

CVE-2021-1716

CVE-2021-1725

Known Issues

The following KBs contain information about known issues with the security updates. For a complete list of security update KBs, please see 20210112. For more information about Windows Known Issues, please see Windows message center (links to currently-supported versions of Windows are in the left pane).

KB Article Applies To
4598229 Windows 10, Version 1903, Windows Server, Version 1903, Windows 10, Version 1909, Windows Server, Version 1909
4598230 Windows 10, Version 1809, Windows Server 2019
4598242 Windows 10, Version 2004, Windows Server, Version 2004, Windows 10, Version 20H2, Windows Server, Version 20H2
4598275 Windows 8.1, Windows Server 2012 R2 (Security-only update)
4598278 Windows Server 2012 (Monthly Rollup)
4598279 Windows 7, Windows Server 2008 R2 (Monthly Rollup)
4598285 Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
4598287 Windows Server 2008 (Security-only update)
4598288 Windows Server 2008 (Monthly Rollup)
4598289 Windows 7, Windows Server 2008 R2 (Security-only update)
4598297 Windows Server 2012 (Security-only update)

January 2021 Security Updates - Release Notes - Security Update Guide - Microsoft

Windows 10: WTH? My computer downgraded itself overnight and is now asking me to update to 2021-02!

WTH? My computer downgraded itself overnight and is now asking me to update to 2021-02!

WTH? My computer downgraded itself overnight and is now asking me to update to 2021-02!

WTH? My computer downgraded itself overnight and is now asking me to update to 2021-02!

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