Call us
    Mainstream Managed Security
    Something looks wrongFor Office Managers
    Call us
    Something looks wrongFor Office Managers
    Industries
    HealthcareLegal/Professional ServicesFinancial Services
    Call us

    Nothing has broken.
    Something just doesn’t look right.

    Someone looks after the computers, and mostly that’s handled. Keeping things running is their job. The odd thing you noticed this week isn’t on anyone’s list yet.

    What did you notice?

    • A customer got an email from us that we never sent
    • A program on a computer that nobody remembers installing
    • Files won’t open, and a message asks for payment
    • The person who does the IT is away, and I don’t know where it stands

    Rather talk to a person? Call (•••) •••-••••. Kristina or Anne will answer. Available during US Eastern time.

    Nothing wrong today?

    Craig writes a short note each week about what he’s seeing on small-business computers.

    We use your email only to send these notes.

    Rather meet first? Meet With Craig Peterson.

    How it works

    1. 1

      Tell us what you noticed.

      Pick the closest one above, or describe it in your own words. Write down what you can before you close a window.

    2. 2

      Read the page that fits it.

      It lists what to check first, in order, and what each result means.

    3. 3

      Talk it through with a person.

      Call, or ask for a call back, and a person looks at it with you.

    Who you’re talking to

    Mainstream Technology Group is a New England based Managed IT Services firm with specialists in Cybersecurity. Craig Peterson has spent 35+ years successfully running IT and security for businesses and, as an InfraGard trainer, has taught 1,775+ attendees from 718 organizations.

    “One of the things that I’ve come to trust with Craig and Mainstream is that they’re honest, they have our backs and they let us know what’s going on. I trust that big things aren’t going to go wrong. And when they do, they’ve always been extremely responsive.”

    Sue, Comptroller, Federal DoD Subcontractor

    Talk to a person about what you noticed.

    Call (•••) •••-••••

    Kristina or Anne will answer. Available during US Eastern time.

    While you wait: run the Reveal Scan on the computer you use for this.

    Run the Reveal Scan on that computer

    The Reveal Scan shows every problem it finds, with no charge and no credit card needed. Step-by-step instructions for fixing them are in the detailed report, which is paid, and you’ll see its price before you buy. It reads one Windows computer at a time and can’t see a mailbox.

    Or ask for a call back. Tell us which computer or mailbox, and what you noticed.

    Request a call back

    Mainstream Technology Group

    35+ years successfully running IT and security for businesses

    Quick Links

    • Something looks wrong
    • Client stories
    • Contact

    Contact

    (•••) •••-••••

    Serving businesses in:

    ME | NH | MA | CT | NY | GA | VA | France

    Remote support available

    © 2026 Mainstream Technology Group. All rights reserved.

    Mainstream Technology Group is a d/b/a of Watchful Solutions, Inc.

    Legal & Compliance DocumentsPrivacy PolicySMS Terms