A Windows patching routine for small firms with no IT department

Someone at your firm clicked "Remind me later" on a Windows update this week. The workday was busy, the restart would have taken ten minutes, and whatever was on-screen felt more urgent. By Friday, the prompt was gone.

That decision — repeated across your office's laptops and desktops — creates the gap attackers count on. Below is why it matters and a routine your firm can realistically keep.

Unpatched Windows and software vulnerabilities are the most consistent entry point attackers use against small firms. When a vendor releases a patch, the previous version's weakness becomes public knowledge and automated tools begin scanning for unpatched systems within days. A weekly restart habit, monthly software checks, and quarterly reviews — supported by Microsoft 365 Business Premium's built-in tools — closes this gap without requiring dedicated IT staff.

Why does the timing of an update matter so much?

When Microsoft or another software vendor publishes a patch, they are also publishing the exact details of what the unpatched version is missing. That information is public. Within days, automated scanning tools search the internet for systems that have not applied the fix. Attackers do not always target your firm specifically — they scan wide ranges of internet addresses and hit whoever responds with a known vulnerability.

Large organizations close that window quickly because they have staff assigned to it. A firm with five or eight employees does not. That staffing gap — not the size of your data or the prestige of your client list — is what makes small businesses a predictable target.

For firms in regulated industries — legal, healthcare, financial services — the consequences extend past the breach itself. Regulators and insurers increasingly require documented patch management as a baseline control. "We didn't get to it" is not a defensible position when you are reporting an incident.

What does Microsoft 365 Business Premium give you here?

If your firm uses Microsoft 365 Business Premium, you have patching infrastructure most businesses your size do not realize they own.

Microsoft Intune, included in Business Premium, lets a managed IT provider apply Windows Update policies to every enrolled device. Instead of each employee controlling their own update schedule, updates are pushed on a defined timeline and confirmed. Devices that fall behind are flagged.

Microsoft Defender for Business, also included, monitors endpoint health and surfaces devices that are out of compliance on patches. You do not need an enterprise license for this. Business Premium provides it at a price point built for smaller firms.

The caveat: both tools require someone to configure them. If your Intune and Defender environments have not been set up, the licenses are running but the protection is not.

The patching checklist your firm can actually keep

This routine is built for a firm with no dedicated IT staff. The time estimates are realistic.

Weekly — five minutes, every Friday

• On each device used that week: Settings → Windows Update → Check for updates.
• Restart any machine showing a pending restart. Updates are not fully applied until the device restarts.
• In any Microsoft 365 desktop app (Outlook, Word, Excel): File → Account → Update Options → Update Now.

Monthly — fifteen minutes, first Monday of the month

• Update your browser. Chrome, Edge, and Firefox each have an "About" screen that checks for and installs available updates.
• Update Adobe Acrobat Reader or Acrobat if your firm uses it. PDF software is a consistently exploited application category.
• Check your billing, practice-management, or accounting software. Compare your installed version to the current release listed on the vendor's website.
• Log in to the Microsoft 365 admin center and review the Security section for flagged alerts or unresolved items.

Quarterly — one hour, with your IT provider

• Confirm that Intune device compliance policies are active and that enrolled devices are passing their health checks.
• Identify devices that have dropped off management — former-employee laptops, personal devices someone began using for work.
• Verify that automatic update settings have not been changed by a user or a software installer.
• Ask for a written patch-status report showing every managed device, its current patch level, and any documented exceptions.

The one habit that protects more than any configuration

Windows downloads updates automatically and installs many of them without prompting. But the patch does not take full effect until the machine restarts. An employee who sleeps their laptop every evening instead of shutting down may be weeks behind on applied patches — even though the progress bar finished and the downloads completed.

Add one instruction to your Friday routine: ask everyone to restart — not sleep, restart — before they leave. That step applies patches that have been sitting inactive. It is the single lowest-effort action with the highest return in this checklist.

If your firm does not have an IT provider actively managing this process, the routine above is a functional starting point. If you want updates enforced automatically, confirmed in writing, and monitored without adding to your calendar, Elevate Solutions configures and manages patch management for firms exactly your size — using the Microsoft 365 Business Premium tools your subscription already includes.

Frequently asked questions

How quickly after a patch is released can attackers exploit the gap?

Within days of a patch being published, automated tools begin scanning the internet for systems that have not applied it. The patch release itself describes exactly what the previous version was missing, which accelerates targeting of unpatched systems.

Does Microsoft 365 Business Premium automatically patch my firm's computers?

Business Premium includes Microsoft Intune, which can enforce Windows Update policies across enrolled devices — but those policies must be configured first. Without active setup, each employee controls their own update schedule through their individual Windows settings.

What software besides Windows needs to be patched regularly?

Browsers, PDF readers, Microsoft 365 desktop apps, and any industry-specific platforms your firm uses — billing, practice management, accounting software — all require regular updates and are common entry points when left behind.

Do regulators require small firms to document their patching?

Regulators in healthcare, financial services, and legal sectors increasingly treat documented patch management as a baseline security control. Firms that cannot demonstrate a consistent practice face greater scrutiny when reporting a security incident.