You are downloading file: BIOS_v1.33.zip?acerid=633643232524879506&Step1=Notebook&Step2=Aspire&Step3=Aspire%205520&OS=702&LC=en&BC=Acer&SC=PA_6
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We always recommend you to scan downloaded files with Returnil System Safe 2011 package before install them.
This is a freeware version of Acer Aspire 5520 Notebook driver. Please be aware that support for Acer Aspire 5520 Notebook driver is available from the publisher site.