Microsoft Office Home and Student 2021 is not officially available for free
To install Microsoft Office Home and Student 2021 using a product key, you must first redeem the key to link it to your Microsoft account. While there is no legitimate "free" product key for this perpetual license, you can download and install the software at no extra cost if you already own a valid 25-character key. Redemption and Installation Process Redeem Your Product Key: Microsoft Office Home and Student 2021 is not
Installation Process
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