ThreatLocker can stop you mid-task with a pop-up like: Centrend has blocked: Request to Run a New Program.
It can feel annoying, but it is doing its job. ThreatLocker is protecting your device by stopping unapproved software from running.
This quick guide shows exactly what to do next so you can get back to work fast.
Why you’re seeing this
ThreatLocker uses a “deny by default” approach. That means programs are blocked unless they’re approved. This helps prevent malware, ransomware, and unwanted tools from sneaking onto your computer.
Sometimes the blocked item is a normal business app. Other times, it’s something risky that should never run. Either way, the next step is the same: send a request the right way.
First, confirm you’re actually blocked
Only take action when you see the ThreatLocker block pop-up.
NEVER send a request unless you are trying to run or install something and it gets blocked.
If you don’t see the pop-up, you don’t need to do anything.
What to do when you see the block pop-up
Before you continue, you can also download the printable version: ThreatLocker Quick Guide (Centrend)
When the pop-up appears, follow these steps. It takes under a minute:
- Add a clear reason
In “Reason for Request,” write what you’re trying to do and why you need it.
Examples:
- “Install Zoom for a client meeting”
- “Run QuickBooks update for billing”
- “Open [app name] to access project files”
- Enter your work email
This is how Centrend confirms approval and follows up if we need more details. - Click “Send Request”
That’s it. Your request goes to Centrend for review.
Tip: The clearer your reason is, the faster we can approve it.
What happens next
After you click Send Request:
- Centrend receives your request right away.
- We review it and approve what’s safe and needed for work.
- You’ll get an email update.
- Then you can try running the app again.
If we need more info, we’ll reach out so we can approve it correctly.
What not to do
When you’re blocked, it’s tempting to try a workaround. Please don’t.
- Don’t try to bypass the pop-up.
- Don’t download a different installer from a random site.
- Don’t keep clicking or retrying in a way that creates multiple requests.
One clean request with a clear reason is the fastest route back to work.
Quick checklist for a “strong” request
Before you click send, make sure your request includes:
- App name
- What you were trying to do
- Why you need it for work
This helps Centrend approve safely and quickly.
Need help right now?
If you’re blocked and it’s urgent, contact Centrend Support.
Email: helpdesk@centrend.com
Phone: 508-347-9550 ext. 1
Website: www.centrend.com
Celebrating 20 Years of Centrend
Thank you for being part of our journey. Here’s our 20th Anniversary poster you can share or display: Get Your Centrend 20th Anniversary Poster
