Are your Microsoft licenses genuine and authentic?

Yes, 100% of our licenses are genuine Microsoft products sourced directly from authorized channels. Every license comes with full Microsoft support and lifetime validity.

How fast is the delivery after purchase?

We provide instant digital delivery. Your license key will be delivered to your email within seconds after payment confirmation. No waiting, no shipping delays.

What payment methods do you accept?

We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and cryptocurrency payments. All transactions are secured with SSL encryption.

Do you offer customer support?

Yes, we provide 24/7 customer support via email and live chat. Our expert team can help with installation, activation, and any technical questions.

Is there a money-back guarantee?

Yes, we offer a 30-day money-back guarantee. If you're not satisfied with your purchase or experience any issues with activation, we'll provide a full refund.

Can I use the license on multiple devices?

It depends on the product. Single-device licenses can be used on one PC. We also offer multi-device packs (5 PC) for families and businesses that need multiple installations.

How long does Office 2021 installation take?

Typically 15-30 minutes depending on your internet speed. The Click-to-Run installer streams files while installing, so you can start using apps before it fully completes.

Can I install Office 2021 without internet?

You need internet for initial download and activation. After activation, Office works fully offline. Microsoft offers offline installer ISOs for organizations.

Do I need to uninstall Office 2019 first?

Yes, it's recommended to uninstall previous Office versions to prevent conflicts. Use Settings > Apps > Apps & features to remove older versions.

Can I install Office 2021 on multiple computers?

One license covers one PC. If you need Office on multiple devices, you'll need additional licenses or consider Microsoft 365 subscription.

What's the difference between 32-bit and 64-bit Office?

64-bit Office handles larger files and more data better. Choose 64-bit unless you rely on legacy 32-bit add-ins or COM components.

Why is my installation failing?

Common causes include: insufficient disk space, antivirus interference, corrupted download, or previous Office remnants. Try the Microsoft Support and Recovery Assistant.

Can I choose which apps to install?

The standard installer includes all Office apps. For custom installation with specific apps only, organizations can use the Office Deployment Tool.

How do I install the 64-bit version specifically?

During download from office.com/setup, look for 'Other options' or 'Language and install options' to select 64-bit before downloading.

How to Install Office 2021 on Windows

Before You Begin

Installing Microsoft Office 2021 on Windows is straightforward when you follow the right steps. This guide covers downloading, installing, and activating Office 2021 Professional Plus on Windows 10 and Windows 11. Whether you purchased from Microsoft or a third-party retailer, these instructions will help you get started.

Step 1: Preparation

Get your system ready for installation

Uninstall Previous Office Versions

Remove any existing Office installations to prevent conflicts. Go to Settings > Apps > Apps & features, find Microsoft Office, and click Uninstall.

Check System Requirements

Ensure your PC meets the minimum requirements: Windows 10 version 1803 or later, 4 GB RAM, and 4 GB free disk space.

Disable Antivirus Temporarily

Some antivirus programs may interfere with installation. Consider temporarily disabling it during setup.

Have Your Product Key Ready

Keep your 25-character product key accessible. You'll need it during or after installation.

Step 2: Download Office 2021

Get the official installer from Microsoft

Method 1: Microsoft Account (Recommended)

1Go to office.com/setup or account.microsoft.com
2Sign in with your Microsoft account
3Enter your 25-character product key
4Select your language and click Install
5The installer (OfficeSetup.exe) will download automatically

Method 2: Direct Download Link

1If you received a download link from your retailer, click it
2The official Microsoft installer will begin downloading
3Save the file to a location you can easily find
4Wait for the download to complete before proceeding

Download Safety

Only download Office from official Microsoft sources or your trusted retailer. Avoid unofficial websites to prevent malware.

Step 3: Install Office 2021

Run the installer and complete setup

Run the Installer

Locate the downloaded OfficeSetup.exe file and double-click to run it. If prompted by User Account Control, click Yes.

Wait for Download

The installer will download Office files from Microsoft servers. This may take 10-30 minutes depending on your internet speed.

Automatic Installation

Office will install automatically. You'll see a progress bar showing the installation status. Don't restart your computer during this process.

Installation Complete

When finished, you'll see a confirmation message. Click Close to finish the setup process.

Office 2021 uses Click-to-Run technology, which streams the installation while you work. You can start using apps before the full installation completes.

Step 4: Activate Office 2021

Enter your product key to unlock full features

During First Launch

1Open any Office app (Word, Excel, etc.)
2Click 'Activate' when prompted
3Enter your 25-character product key
4Click 'Activate Office'
5Wait for confirmation message

Through Account Settings

1Open any Office app
2Go to File > Account
3Click 'Change Product Key'
4Enter your product key
5Follow the on-screen instructions

Activation Successful

You'll see 'Product Activated' under the Subscription Product section in File > Account. All features are now unlocked.

Step 5: First Launch Setup

Configure Office for your preferences

Choose Your Theme

Select between Colorful, Dark Gray, Black, or White themes. You can change this later in Options.

Sign In (Optional)

Privacy Settings

Review and configure privacy settings. Choose what data to share with Microsoft for improving Office.

Start Creating

You're ready! Create a new document or open an existing file to start working.

Step 6: Troubleshooting

Solutions to common installation problems

Microsoft Support and Recovery Assistant

Download Microsoft's free tool to automatically diagnose and fix Office installation issues.

Download tool

Pro Tips for Best Experience

Choose 64-bit Version

Unless you need legacy 32-bit add-ins, install the 64-bit version for better performance with large files.

Keep Windows Updated

Regular Windows updates ensure compatibility and security for Office 2021.

Install on SSD

Installing Office on an SSD dramatically improves startup and file loading times.

Create a Restore Point

Before installation, create a system restore point so you can roll back if needed.

Save Your Product Key

Store your product key in a safe place. You'll need it if you reinstall Office later.

Enable Auto-Updates

Keep Office updated to get security patches and new features automatically.

Frequently Asked Questions

Related Office 2021 Guides

Office 2021 vs Microsoft 365

View all Office 2021 guides

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