Windows 10: how do i reset my computer to march 31 2020

I recently installed a new screen for use with web cam, I made some mistakes, but got web cam working but lost my set ups and made mistakes, now I don't know what tables I've changed. I can get to my apps, but have trouble with my home page and facebook. on an old computer I would simply tell it to reset date to a time it would do that, without loosing downloads

or new material.

:)

 

has my computer been changed by Microsoft Windows this March 2020

has my computer been changed by Microsoft Windows this March 2020

 

Microsoft March 2020 Security Updates

Release Notes
March 2020 Security Updates
Release Date: March 10, 2020

The March 2020 security release consists of security updates for the following software:

• Microsoft Windows
• Microsoft Edge (EdgeHTML-based)
• Microsoft Edge (Chromium-based)
• ChakraCore
• Internet Explorer
• Microsoft Exchange Server
• Microsoft Office and Microsoft Office Services and Web Apps
• Azure DevOps
• Windows Defender
• Visual Studio
• Open Source Software
• Azure
• Microsoft Dynamics

Please note the following information regarding the security updates:

• 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.
• 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.
• Updates for Windows RT 8.1 and Microsoft Office RT software are only available via Windows Update.
• For information on lifecycle and support dates for Windows 10 operating systems, please see Windows Lifecycle Facts Sheet.
• 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 additional information and may include * further steps to take after installing the updates. Please note that this is not a complete list of CVEs for this release.

• CVE-2020-0765
• CVE-2020-0774
• CVE-2020-0775
• CVE-2020-0795
• CVE-2020-0813
• CVE-2020-0820
• CVE-2020-0850
• CVE-2020-0851
• CVE-2020-0852
• CVE-2020-0853
• CVE-2020-0855
• CVE-2020-0859
• CVE-2020-0861
• CVE-2020-0863
• CVE-2020-0871
• CVE-2020-0874
• CVE-2020-0876
• CVE-2020-0879
• CVE-2020-0880
• CVE-2020-0882
• CVE-2020-0885
• CVE-2020-0891
• CVE-2020-0892
• CVE-2020-0893
• CVE-2020-0894
• CVE-2020-0902 *

Known Issues

The following KBs contain information about known issues with the security updates. For a complete list of security update KBs, please see 20200310

KB Article Applies To
4538032 Visual Studio
4538461 Windows 10 Version 1809, Windows Server 2019
4540123 Microsoft Exchange Server
4540670 Windows 10, version 1607, Windows Server 2016
4540671 Internet Explorer
4540673 Windows 10, version 1809, Windows Server version 1809, Windows 10, version 1809, Windows Server version 1809
4540688 Windows 7, Windows Server 2008 R2 (Monthly Rollup)
4540694 Windows Server 2012 (Security-only update)
4541500 Windows 7, Windows Server 2008 R2 (Security-only update)
4541504 Windows Server 2008 (Security-only update)
4541505 Windows 8.1, Windows Server 2012 R2 (Security-only update)
4541506 Windows Server 2008 Service Pack 2 (Monthly Rollup)
4541509 Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
4541510 Windows Server 2012 (Monthly Rollup)

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March 10 2020 Cumulative Updates Breaking Login

Background information:

On March 10, 2020, I installed the Cumulative Updates for Windows 10 (KB4540673), and rebooted my computer on March 11, 2020, as I install updates at night to have an up and running computer by the next day. On March 11, 2020, everything worked fine, though
the update was stuck on 100% for almost 2 hours.

Issue:

After opening my computer on March 12, 2020, my computer was stuck on the welcome screen. I could enter my pin, but my computer would stay there with "Welcome" on it and a buffering circle, unable to boot to my desktop. Then I tried safe mode, which resulted
in the same error, staying on the "Welcome" and buffering circle when attempting to log in.

I temporarily fixed the issue by going into advanced system settings and uninstalling the update. However, that would mean I have to update again, and updating again will cause the same issue, as I tried again a few days ago, which resulted in the same exact
problem.

Is there any help for this, to stop my computer from installing that one update, or just fixing the welcome screen?