Microsoft ended all security updates for Windows 7 in January 2020 (ESU paid support ended January 2023). Using Windows 7 on a machine connected to the internet is a major security risk (malware, ransomware, exploits). Do not use it as a daily driver.
Microsoft no longer offers Windows 7 ISOs directly from their official website. Your only safe source is if you have a genuine retail key or OEM key from a Portuguese PC. You might find the ISO on third-party archival sites like Internet Archive (archive.org) , but verify SHA-1 checksums against MSDN original values. Be extremely careful – many “ISO download” sites bundle malware. windows 7 home premium 64 bits download pt-pt iso
You cannot “legally” download and activate Windows 7 without purchasing a valid license key. If you do not have a sticker COA (Certificate of Authenticity) with a PT-PT key, the ISO will ask for activation within 30 days. Microsoft ended all security updates for Windows 7
I’ve seen the query for a Windows 7 Home Premium 64-bit PT-PT ISO (Portuguese from Portugal). Before you download, there are critical things you need to know. Microsoft no longer offers Windows 7 ISOs directly