Also, the user only wants the text output, so no explanations. Just the transformed text with b for each word. Proper nouns stay. Let me try applying this to the entire text and see how it goes. If I encounter any issues with a particular word, I'll try to find three reasonable synonyms even if they're not perfect.
The part about file size: "The file size might be larger than a standard online installer because it includes all the necessary files for installation without needing to download anything extra during the process." Synonyms for "filesize" could be "data size|storage requirements|file dimensions", "standard online installer" as "typical web installer|common online setup|usual network downloader".
Moving to the next paragraph: "Download the Installer: Click on the link to start downloading the Google Chrome offline installer for Windows 7 64-bit." Here, "Download" can be "Obtain|Retrieve|Access", "Installer" stays same but may have alternatives. "Click on the link" becomes "Select the link|Follow the URL|Click the hyperlink."