QuickBooks Desktop 2020 remains one of the most widely used versions of Intuit's accounting software, and many small businesses continue to rely on it for day-to-day bookkeeping. Whether you are setting up a new computer, recovering from a system failure, or doing a clean reinstall, this guide walks you through the full download and installation process using your original license. As long as you have a valid license number and product key from your original purchase, reinstalling QuickBooks 2020 is a straightforward process.
Having trouble with your download or installation? Call support for direct help.
+1 (800) 446-8848What Is QuickBooks Desktop 2020?
QuickBooks Desktop 2020 - officially version 20.0 - was released in late 2019 for the 2020 fiscal year. It was available in three core editions:
- QuickBooks Pro 2020 - designed for small businesses needing essential accounting features
- QuickBooks Premier 2020 - added industry-specific tools for contractors, nonprofits, retailers, and professional services firms
- QuickBooks Enterprise 20.0 - built for larger businesses requiring advanced inventory, reporting, and multi-user access
QuickBooks 2020 introduced several notable improvements over prior versions. These included automated payment reminders that could be scheduled and sent directly from the software, improved bank feed matching with smarter transaction categorization, and customizable expense categories that made it easier to track spending by project or department.
Important Notice: End-of-Life Status
Intuit officially ended support for QuickBooks Desktop 2020 in May 2023. The following services are no longer available for this version:
- Security patches and bug fixes
- Payroll tax table updates (automated payroll will not function correctly)
- Live bank feeds and automatic transaction downloads (unreliable or fully disconnected for many institutions)
- Intuit Data Protect cloud backup
- Official customer support from Intuit
If you are reinstalling QuickBooks 2020 to access historical company data on a legacy machine, this guide applies directly to your situation. However, if you are actively running your business on this version, you should plan an upgrade path. Payroll tax tables are outdated, bank feeds have dropped for several financial institutions since the May 2023 cutoff, and security vulnerabilities are no longer patched.
System Requirements for QuickBooks 2020
Before downloading, confirm your machine meets the requirements QuickBooks Desktop 2020 was designed for:
- Operating System: Windows 8.1 or Windows 10, 64-bit required
- Processor: 2.4 GHz minimum
- RAM: 4 GB minimum, 8 GB recommended for best performance
- Disk Space: 2.5 GB of available space (additional space required for company files)
- Screen Resolution: 1280x1024 minimum (optimized for 1920x1080)
- .NET Framework: Version 4.8 or later required
- Internet Explorer: Version 11 required for certain features
- Internet Connection: Required for product registration, updates, and payroll (while supported)
Note: QuickBooks 2020 was not officially certified for Windows 11. Many users report it runs adequately on Windows 11 with compatibility settings, but Intuit does not provide support for this combination.
Before You Begin
Gather the following before starting the download and installation:
- License Number: A 12-digit number from your original purchase confirmation, product packaging, or Intuit account
- Product Key: A 16-character alphanumeric code from your original purchase
- Intuit Account Credentials: The email and password for the Intuit account used when you originally purchased QuickBooks 2020
- Administrator Rights: You must be logged into Windows as an administrator to install QuickBooks
- 64-bit Windows: QuickBooks 2020 requires a 64-bit operating system - 32-bit systems are not supported
If you no longer have your license number or product key, log into your Intuit account first. Intuit stores license details for registered copies, and you may be able to retrieve them from the account portal without contacting support.
Having trouble with your download or installation? Call support for direct help.
+1 (800) 446-8848Step-by-Step Download Guide
The primary method for downloading the QuickBooks 2020 installer is through your Intuit account:
- Open a web browser and go to quickbooks.intuit.com
- Click Sign In and log in with the Intuit account associated with your QuickBooks 2020 purchase
- Navigate to My Account and then Manage My Licenses
- Select Downloads and Updates from the account menu
- Choose QuickBooks Desktop as the product
- Select 2020 from the version dropdown
- Choose your edition (Pro, Premier, or Enterprise) and confirm your Windows version
- Click Download to retrieve the installer file
If the installer is not listed in your account:
Some older or transferred licenses may not appear automatically. In this case:
- Try logging out and back in, then refresh the Downloads and Updates page
- Use a different browser if the page does not load correctly
- Contact Intuit support with your original license number, product key, and proof of purchase
- Intuit can provide a direct download link for registered users with valid licenses
An original installation CD from your purchase is also valid installation media. The license number and product key determine your right to use the software - the installer file itself is interchangeable.
Installation Steps
Once you have the installer, follow these steps:
- Close all running programs on your computer
- Right-click the installer file and select Run as Administrator
- If prompted by User Account Control, click Yes to allow the installation
- Read and accept the Intuit Software License Agreement
- Choose Express Install for a standard single-user setup, or Custom and Network Options for multi-user or network configurations
- Enter your License Number and Product Key when prompted
- Select your installation directory (the default location is recommended for most users)
- Click Install and allow the process to complete - this typically takes 10 to 20 minutes depending on your system
- Click Open QuickBooks or Finish when installation completes
- Launch QuickBooks from the Start menu or desktop shortcut
Activation
After installation, QuickBooks 2020 requires activation to unlock full functionality:
- Open QuickBooks Desktop 2020
- Go to Help and then Activate QuickBooks Desktop
- Follow the on-screen activation wizard
- Enter your license number and product key if prompted again
Online activation is the primary method and typically completes within a few seconds. If online activation fails, you can use phone activation:
- When the online activation fails, select Phone Activation
- Call the Intuit activation number shown on-screen
- Enter the installation number displayed in QuickBooks when the automated system prompts you
- Record the confirmation code provided
- Enter the confirmation code into QuickBooks to finish activation
QuickBooks 2020 activation servers are still operational as of 2024 for most users, but phone activation remains available as a fallback if the online method does not succeed.
Troubleshooting Download Issues
Installer not appearing in your Intuit account
Log out and log back in, then navigate to Downloads and Updates again. If still missing, try a different browser. For older purchases or licenses transferred from another user, contact Intuit support directly with your license number and purchase details.
.NET 4.8 not installed
QuickBooks 2020 requires .NET Framework 4.8. If you see an error about this during installation, download and install .NET 4.8 from the Microsoft website first, restart your computer, and then run the QuickBooks installer again.
Antivirus blocking the installer
Security software sometimes flags QuickBooks installer files as a false positive. Temporarily disable your antivirus during installation and re-enable it immediately after. Add QuickBooks to your antivirus exclusions list to prevent future issues.
Windows 11 compatibility issues
QuickBooks 2020 is not officially certified for Windows 11. If you encounter issues, right-click the installer, go to Properties, select the Compatibility tab, and set it to run in Windows 10 compatibility mode. Run as Administrator as well.
Slow installation or installer freezing
Close all background applications before running the installer. If the installer stalls, try disabling your firewall temporarily and running the QuickBooks Install Diagnostic Tool from the QuickBooks Tools Hub.
Expert Insight
QuickBooks 2020 was a strong release and many businesses are still using it. But May 2023 end-of-life means payroll is now outdated, and I have seen bank feeds drop for several financial institutions in 2024. The reinstall process works fine with the original license, but I always use these conversations as an opportunity to discuss the upgrade path.
Emily Carter
CPA & Fintech Content Specialist