---
title: Where can I find information about installing Thesaurus?
description: Learn the Windows requirements for Thesaurus payroll software, how to install it using course instructions, and where to get support if issues arise.
---

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# Where can I find information about installing Thesaurus?

### **Important**

*The payroll software used in this course requires a **Windows** operating system. It is your responsibility to ensure you have access to a Windows system for the payroll part of the course.*

***The software license has a time limit.** Please **do not activate your Thesaurus software license until you need it**; otherwise **it may expire** before the submission or resubmission deadlines.*

#### **Pre-August 2026**

The **Bookkeeping and Payroll On Demand** course **Unit 08 slide deck** contains instructions for how to download and install the Thesaurus payroll software, and the credentials for the certificate.

If this does not work for you, please try uninstalling and reinstalling the certificate, and trying again.

If you are still experiencing issues, please reach out to your Subject Matter Expert during the next live Q&A session or ask on the forums.

If you still require support, please do reach to us at **support@ucdpa.ie** and we will do our best to help.

After exhausting all of the above options, please reach out to the Thesaurus support team **[here](https://www.thesaurus.ie/blog/2019/01/customer-support-we-re-here-to-help/)**.

#### **Post-August 2026**

Unit 9 contains instructions for how to download and install Thesaurus, the credentials for the cert and installation and troubleshooting advice.

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