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Windows 10 End-of-Life & Windows 11 Preview : What this means for your business

Microsoft announced recently that Windows 10’s End-of-Life date is set for October 14th, 2025. As a business owner, the practical impacts of this announcement can be difficult to sort out – but not to worry – Euclid Networks is here to help you sort it out!

October 14th, 2025 will will mark just over 10 years since Microsoft’s Windows 10 operating system was first introduced – we know, we know – we can’t believe it has been that long either. With the recent announcement of Windows 11 however, it’s important to get ahead of the game when planning your long term IT budget, and equipment upgrade paths.

Windows 11 promises to be a meaningful upgrade from 10, more tightly integrating with MS’s cloud service offerings.

The majority of our clients have moved on to Windows 10 for their OS, and are covered by our proactive patching and updating service – but for those who still haven’t, now is the time to make the switch. As Windows 10 and Windows 11 share the same “DNA”, upgrading from 10 to 11 promises to be much simpler than an upgrade from – for example, Windows 7, or Win XP.

Win 10 End-of-Life : What it means for your business

Once Windows 10 reaches its end-of-life, the operating system will no longer receive important security updates, or new features via patches. As it will have reached the end of its cycle, 3rd party software vendors will also begin phasing out their support for the operating system, meaning new versions of those programs will default to Windows 11 as their recommended platform.

As an IT support provider, we can’t stress enough how important keeping current on security updates is, for the protection of your business’ data, and overall network. The #1 avenue for malware and ransomware attacks is through outdated software. Outdated software can potentially cost your business tens, or hundreds of thousands of dollars in remediation and lost revenue.

Ransomware in 2020 : At a glance (source : Nationwide)

» The average enterprise ransom payment is $111,605.

» 205,280 organizations were affected by ransomware attacks in 2019.

» The average cost for victims of ransomware attacks to recover more than doubled in the final quarter of 2019. According to a new report from Coveware, a typical total now stands at $84,116. That’s a little over double the previous figure of $41,198.

Windows 11 : What’s New?

Start Menu : Windows 11 has a new, simplified Start menu. Live tiles are gone, replaced with a list of app icons and recent files. Documents you edit in Office apps on other devices—even devices that aren’t running Windows—will appear as recent files here, too, thanks to Microsoft 365. Don’t have Microsoft 365 yet? We can help – contact us today!

Multi-App & Multi-Monitor Support : Windows 11 also features “Snap Groups”, which helps organize your windows, as you multi-task. Selecting a single taskbar icon will now pull up a group of snapped apps. Also, when using Windows 11 on a tablet, windows that are side-by-side will automatically stack on top of each other when you change the device’s orientation.

Multiple monitors support is improving also, with a “new docking and undocking experience.” When you unplug a monitor, the windows on the monitor will minimize themselves rather than getting in the way. When you reconnect the monitor, Windows will automatically restore the windows to their original positions on that monitor.

Widgets and MS Teams on the Taskbar

Tighter integration with Microsoft 365 and Redmond’s cloud offerings, means integrations with its services like Microsoft Teams and Onedrive will be built directly into the Windows 11 task-bar. We’ve seen iterations of this pop up in the latest Windows 10 updates, but as MS moves forward, expect the benefits of using Microsoft’s cloud offerings for your business to increase!

& More!

Details are forthcoming, but stay tuned – Microsoft has planned to begin rolling out Windows 11 as soon as this fall – expect to begin seeing it on new devices soon.

About Euclid Networks

Euclid Networks is an IT support provider that brings a fresh, proactive approach to your business computing needs. We serve a wide variety of Atlanta area businesses, including Legal Firms, Healthcare Providers, Non-Profits, and Professional Services Providers.

Our experience in the technology industry and dedication to personalized service sets us apart. We’re real people, who care about tech support.


Microsoft Outlook crashes with 0xc0000005 errors due to Office 365 Patch, how to resolve

We’ve seen on over a dozen machines today, Microsoft Outlook (Office 365 continual update version) crashes, with 0xc0000005 errors logged in the event log.

The full text of this error is below.

Faulting application name: OUTLOOK.EXE, version: 16.0.13001.20266, time stamp: 0x5ef262ee
Faulting module name: mso98win32client.dll, version: 0.0.0.0, time stamp: 0x5ef2aa2d
Exception code: 0xc0000005
Fault offset: 0x000474b2
Faulting process id: 0x4cf0
Faulting application start time: 0x01d65ac9b0e13874
Faulting application path: C:\Program Files (x86)\Microsoft Office\root\Office16\OUTLOOK.EXE
Faulting module path: C:\Program Files (x86)\Common Files\Microsoft Shared\Office16\mso98win32client.dll
Report Id: 908e152f-636f-4f5a-9717-48a5576b3ccd
Faulting package full name: 
Faulting package-relative application ID: 

Microsoft had acknowledged this crash and documented a resulting fix on Twitter, and on the Office 365 Support portal :

Title: Users experiencing Outlook connection issues and crashes

User Impact: Users may experience crashes or may be unable to access Exchange Online via Outlook.

More info: Our analysis indicates that Outlook on the web and mobile clients are unaffected. Users may be able to leverage those protocols as an alternative means to access email and service features while we remediate this problem.

Current status: Our initial review of the available data indicates that recently deployed updates are the likely source of the problem. We're performing an analysis of all recent service updates to isolate the underlying cause of the problem and to determine the most expedient means to restore service.

Scope of impact: This issue may potentially affect any of your users attempting to use Outlook.

The immediate fix for this is to roll back Microsoft Office versions, which can be done by opening a command line as Administrator and typing : cd "\Program Files\Common Files\microsoft shared\ClickToRun"

officec2rclient.exe /update user updatetoversion=16.0.12527.20880

After rolling back versions, Outlook should open and function as normal!

If you’re in need of a proactive, IT Support company in the Atlanta area, don’t hesitate to contact us today!


Using a Synology NAS as a Backup DNS Server for Active Directory

As we onboard any new IT support partner, one of our security and network assessment tasks is to validate a client’s server and disaster recovery environment.

As part of this assessment, we often find a customer will have a single point of failure with their active directory environment – most small businesses don’t have the resources to afford multiple servers, and often times previous systems administrators will have not had the foresight to follow best practices regarding building server resiliency.

One example of a point of failure with a single-server environment that we see all too often is DNS. In many cases, the Primary Domain Controller (PDC) will serve as the sole internal DNS provider. Meaning, if a power outage occurs, or if a PDC goes down for any reason, the entire office will “lose” internet connectivity – often a costly outage until technical help can arrive!

Many of these clients do, however, have secondary “server”-like devices – NAS units, Linux machines, et cetera. While using these as a “backup” DNS provider is not a best practice, we aim to provide the best tech support we can while utilizing resources a client already has in place – thus saving them money!

In the following, we outline steps to convert a Synology NAS device into a backup DNS server for an Active Directory (Windows Server 2019) environment.

1. Install DNS Package on Synology NAS – straightforward, by opening Package Manager.

2. Set up a “Slave Zone” – Within Synology’s DNS manager, create a slave zone, set domain type to Forward Lookup Zone, and enter your PDC’s DNS information.

3. Set up DNS Resolution and forwarding on the NAS – In the below, we have enabled the resolution service, and also forwarders. In our lab, we actually do have a backup local DNS server (192.168.1.8 here), but also forward on DNS requests to Google (8.8.8.8/8.8.6.6) to allow for internet connectivity during PDC downtime.

4. Configure DNS Forwarding on PDC – On your server, open DNS, select your AD’s forward lookup zone, open properties.

4.1 Under Zone Transfers, ensure Allow Zone Transfers is enabled, to servers listed in the DNS Tab.
4.2 Under Notify – Ensure the same setting is enabled.
4.3 Add your Slave Name Server to the list of configured name servers. Important – ensure your server validates, with a green check once its FQDN is added.

5. Verify DNS records and Zone Transfer has completed On the Synology DNS Manager, under ‘Zones’, select ‘Edit’ and open ‘Resource Record’ you should find propagated records.

Optional but recommended – repeat steps 2-5 for the Reverse Lookup Zone (EG, 1.168.192.in-addr.arpa) and _msdcs.yourlocal.domain. You *do* have a reverse lookup zone configured, don’t you? =)

6. Add your New DNS Server to DHCP – Don’t forget to configure your DHCP leases to include your new backup DNS server!

7. Test out DNS resolution – Finally, test your new server to ensure it’s resolving external domain names correctly, and test a failure of your PDC by taking it offline. Success!

If this writeup has been helpful to you, please share your comments below. And as always, if you’re looking for proactive managed IT service in Atlanta, Euclid is here to help!


Subdomain and Domain forwarding not working properly with GoDaddy and Sonicwall Firewall

Godaddy ​Domain and Subdomain Forwarding times out without forwarding, unexpectedly, when using a Sonicwall Firewall.

Domain Forwarding is typically used to redirect a user to a different website when they type in a URL in a browser. In this case, the forwarding will time out – with either a browser 404 error – or a CONNECTION_TIMED_OUT message. DNS resolution will work properly – subdomain.domain.com for example will return the correct A record, pointing to Godaddy’s IP addresses.

The domain redirect may work sporadically on some phones or computers where traffic is not directly passing through a Sonicwall firewall.

The reason for the failed domain forwarding is that by default the Sonicwall enables TCP Packet Sequence Randomization which causes Godaddy’s Domain Forwarding service to break. When doing packet analysis in Wireshark, we saw TCP ACK connections out of sequence and dropped connections.

To fix this issue:

  1. Login into the IP address of the Sonicwall firewall.
  2. Go to http://{firewall.ip.address}/diag.html – You will get a warning about Advanced Settings
  3. Click on Internal Settings.
  4. Untick the box: “Enable TCP sequence number randomization”
  5. Scroll up and click Accept.
  6. Click Close.
  7. Reboot the firewall.

Verify you can now access a Domain forwarded address.  Note that servers behind the firewall will be slightly more vulnerable to host identification by disabling this TCP Sequence Randomization. But in this case, it would be a fairly targetted attack, so the overall risk is low.


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