You bought a laptop with Windows 7 license (probably Home Premium or Professional). But the manufacturer did not provide you with the installation media (CD/DVD). Bummer. They did provide you with the recovery kit or recovery partition but you think that their installation has damn too many bloatware (yes brother! you are right, kudos !). You want to start anew with a fresh installation of Windows 7, SP1 all by yourself. Hold that thought….

  • You don’t have the Windows 7 <whatever version,build>SP1 DVD.
  • Since you already have the license, you don’t need to buy a new one. So, you just need to download the ISO file.
  • But where to download? (Stop scratching your head !) head out for a torrent site.
  • Then, you start nagging and wondering whether the ISO has been tampered by crackers / hackers or what not, waiting to exploit your computer to be their botnet minion. (Mind you, 99% of Windows 7 ISO that one downloads via torrent has been tampered with, which basically means that somebody has modified the original ISO and injected something (either a non-malicious software such as an unlocker, pdf reader,a new build OR an extremely malicious software such as a rootkit/trojan/etc. A big warning placard if you do use your computer for internet banking or often purchase items via credit or debit card).
  • So how to ensure that the ISO files have not been tampered with? Well, this is what you should do.

A few years back laptops usually surfaced with Windows 7 Home Premium x64 SP1.

  • You will find Windows 7 Home Premium x64 with SP1 in the ‘ISO NAME AND HASH KEY (RECORD) just below. From there,copy the file name,viz :
    en_windows_7_home_premium_with_sp1_x64_dvd_u_676549.iso
  • Search (Google) en_windows_7_home_premium_with_sp1_x64_dvd_u_676549.iso and download it. Hell yeah !! you found it at piratebay.
  • Download the torrent. {I believe that we are not breaking any cyber laws by downloading something that we have already paid for. We own the license after all 😉  }
  • Once the download is complete, you need to check whether the ISO is genuine or has been tampered with. Download MD5 / SHA1 Download Checker. [no sneakwares] Get it here from CNET.
  • Use MD5 / SHA1 Download checker and openen_windows_7_home_premium_with_sp1_x64_dvd_u_676549.iso. Get MD5 and SHA1 value.
  • Compare the MD5 and SHA1. Ideally, the one that is generated by the MD5 / SHA1 Download Checker should be identical with the record below. (Where did I get these? Refer to the ISO NAME AND HASH KEY (RECORD) Section.
  1. SHA1: 6C9058389C1E2E5122B7C933275F963EDF1C07B9 
  2. ISO/CRC: 4A182640
  • If they are identical, you are safe.

PS: Some tidbits for those who are feeling damn lazy…Scroll down to the end of this page. Mind you, please double check the hash. If you don’t trust the Hash record here, please check https://technet.microsoft.com .You can use your Live / Hotmail / whatever account to check the hash key, the only complication being you cannot download a legal copy yourself from there assuming that you are not their ‘special’ subscriber .

ISO NAME AND HASH KEY (RECORD)

Windows 7 Starter with Service Pack 1 (x86) - DVD (English)

File Name: en_windows_7_starter_with_sp1_x86_dvd_u_678562.iso

Date Published (UTC): 5/12/2011 2:43:48 PM

Last Updated (UTC): 5/12/2011 2:43:48 PM

SHA1: E1653B111C4C6FD75B1BE8F9B4C9BCBB0B39B209

ISO/CRC: C810B42C

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Windows 7 Home Basic with Service Pack 1 (x86) - DVD (English)

File Name: en_windows_7_home_basic_with_sp1_x86_dvd_u_676470.iso

Date Published (UTC): 5/12/2011 2:32:46 PM

Last Updated (UTC): 5/12/2011 2:32:46 PM

SHA1: 080EC1DE94B88B0F7E8D000690A4AAAA031E2719

ISO/CRC: FF5299DA

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Windows 7 Home Premium with Service Pack 1 (x86) - DVD (English)

File Name: en_windows_7_home_premium_with_sp1_x86_dvd_u_676701.iso

Date Published (UTC): 5/12/2011 2:33:58 PM

Last Updated (UTC): 5/12/2011 2:33:58 PM

SHA1: 6071B4553FCF0EA53D589A846B5AE76743DD68FC

ISO/CRC: 85B5EF4A

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Windows 7 Home Premium with Service Pack 1 (x64) - DVD (English) File Name: en_windows_7_home_premium_with_sp1_x64_dvd_u_676549.iso Date Published (UTC): 5/12/2011 2:34:16 PM Last Updated (UTC): 5/12/2011 2:34:16 PM SHA1: 6C9058389C1E2E5122B7C933275F963EDF1C07B9 ISO/CRC: 4A182640

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Windows 7 Professional with Service Pack 1 (x86) - DVD (English)

File Name: en_windows_7_professional_with_sp1_x86_dvd_u_677056.iso

Date Published (UTC): 5/12/2011 2:37:38 PM

Last Updated (UTC): 5/12/2011 2:37:38 PM

SHA1: D89937DF3A9BC2EC1A1486195FD308CD3DADE928

ISO/CRC: E8C2AD67

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 Windows 7 Professional with Service Pack 1 (x64) - DVD (English)

File Name: en_windows_7_professional_with_sp1_x64_dvd_u_676939.iso

Date Published (UTC): 5/12/2011 2:37:46 PM

Last Updated (UTC): 5/12/2011 2:37:46 PM

SHA1: 0BCFC54019EA175B1EE51F6D2B207A3D14DD2B58

ISO/CRC: AD44DB36

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Windows 7 Professional with Service Pack 1, VL Build (x86) - DVD (English)

File Name: en_windows_7_professional_with_sp1_vl_build_x86_dvd_u_677896.iso

Date Published (UTC): 5/12/2011 2:39:37 PM

Last Updated (UTC): 5/12/2011 2:39:37 PM

SHA1: D5BD65E1B326D728F4FD146878EE0D9A3DA85075

ISO/CRC: DB028749

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Windows 7 Professional with Service Pack 1, VL Build (x64) - DVD (English)

File Name: en_windows_7_professional_with_sp1_vl_build_x64_dvd_u_677791.iso

Date Published (UTC): 5/12/2011 2:39:30 PM

Last Updated (UTC): 5/12/2011 2:39:30 PM

SHA1: 708E0338D4E2F094DFEB860347C84A6ED9E91D0C

ISO/CRC: AAFC72AE

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Windows 7 Enterprise with Service Pack 1 (x86) - DVD (English)

File Name: en_windows_7_enterprise_with_sp1_x86_dvd_u_677710.iso

Date Published (UTC): 5/12/2011 2:29:50 PM

Last Updated (UTC): 5/12/2011 2:29:50 PM

SHA1: 4E0450AC73AB6F9F755EB422990CD9C7A1F3509C

ISO/CRC: E3586659
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 Windows 7 Enterprise with Service Pack 1 (x64) - DVD (English)

File Name: en_windows_7_enterprise_with_sp1_x64_dvd_u_677651.iso

Date Published (UTC): 5/12/2011 2:30:00 PM

Last Updated (UTC): 5/12/2011 2:30:00 PM

SHA1: A491F985DCCFB5863F31B728DDDBEDB2FF4DF8D1

ISO/CRC: CE09FA98

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 Windows 7 Ultimate with Service Pack 1 (x86) - DVD (English)

File Name: en_windows_7_ultimate_with_sp1_x86_dvd_u_677460.iso

Date Published (UTC): 5/12/2011 2:45:59 PM

Last Updated (UTC): 5/12/2011 2:45:59 PM

SHA1: 65FCE0F445D9BF7E78E43F17E441E08C63722657

ISO/CRC: 35511F11

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 Windows 7 Ultimate with Service Pack 1 (x64) - DVD (English)

File Name: en_windows_7_ultimate_with_sp1_x64_dvd_u_677332.iso

Date Published (UTC): 5/12/2011 2:46:21 PM

Last Updated (UTC): 5/12/2011 2:46:21 PM

SHA1: 36AE90DEFBAD9D9539E649B193AE573B77A71C83

ISO/CRC: 992B8FCD

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