Ask a new question

Where I find the correct SHA1 checksum for the Windows 8 Pro Upgrade ISO?

I ordered the Win 8 Pro upgrade online.  (not a preview but the new product on 10/26/12.)  I downloaded and burned the ISO file for the English version of the Windows 8 ISO.  I'm assuming 64 bit. This proceeded without incident.  I started the upgrade onto a Windows 7 SP1 PC 64bit  but it failed during the Installing Windows 8 phase at 72% complete with the error "Windows 8 installation has failed".  

So I restarted the upgrade and it failed at exactly the same spot (72%) and the same cryptic error.

So I contacted the Microsoft Store and they assisted me in going through the download process a 2nd time.  The resulting 2nd ISO file was precisely the same size BUT it had a different SHA1 checksum!  

So I attempted the upgrade again using the new DVD burned from the 2nd ISO file and it failed at exactly the same stage of the upgrade ( 72%). 

So did I get two corrupted downloads/burns?   I have no way of telling because all I know is they have different checksums.

Maybe they're both wrong or maybe the issue is something else entirely.

But first things first.   How do I determine if my ISO file is correct?  
What is the SHA1 checksum of an uncorrupted ISO file?    Where is the information online?


Answer
Answer

32 bit:

File Name: en_windows_8_x86_dvd_915417.iso
Languages: English
SHA1: 22D680EC53336BEE8A5B276A972CEBA104787F62

64 bit:

File Name: en_windows_8_x64_dvd_915440.iso
Languages: English
SHA1: 1CE53AD5F60419CF04A715CF3233F247E48BEEC4

Verify the ISO file is not corrupted: Download and install SlavaSoft's HashCalc
HASH, CRC, AND HMAC CALCULATOR
http://www.slavasoft.com/hashcalc/index.htm

For Windows .ISO file just place check marks in the SHA1 and CRC32 boxes.

In the main HashCalc Window the 'Data format' box located in the upper left should be set to "File"

In the 'Data' field click on the ... box located in the upper right and then click 'Cancel' if you get an 'Insert Disk' window pop up.

After you click 'cancel' you should see a 'Find' window. Use this to navigate to the folder where your .ISO file is stored and click on the file.

You should now see the .ISO file you clicked on listed in the 'File name' box located near the bottom of the 'Find' window.

Now click the 'Open' button. The Data field should now show the directory/folder path and the name of the .ISO file you selected.

With only the SHA1 and CRC32 boxes checked (Do not place check marks in any other boxes as this can slow down the time it take to calculate the values) click the 'Calculate' button located at the bottom of the main HashCalc window.

It will take anywhere from 30 to 60 seconds for the calculation to complete and the SHA1 and CRC32 data values to be displayed.

The reported values are not case sensitive, so a lower case 'a' is the same as an upper case 'A' as far as the results are concerned and should match what I have posted.

Best,
Andre
twitter/adacosta
groovypost.com

Was this reply helpful?

Sorry this didn't help.

Great! Thanks for your feedback.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this reply?

Thanks for your feedback.

Answer
Answer
I have the same issue with my 64-bit version of windows English. 

I have created a bootable DVD from the iso and started installing a clean install by formatting the hard drive.

The installation will be stuck at 17% and it happend to me like 3 times and i have burned a fresh DVD and still the same issue.

This is like the worst upgrade ever...... Is there a way that i can download a 64-bit bootable DVD iso and use it to upgrade ???? 


Was this reply helpful?

Sorry this didn't help.

Great! Thanks for your feedback.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this reply?

Thanks for your feedback.

 
 

Question Info

Last updated August 10, 2023 Views 22,943 Applies to: