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Errors in upgrading windows vista to windows 7


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#1
kwielechow1987

kwielechow1987

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Hello I am trying to upgrade my Dell notebook XPS M1530 from Windows Vista to Windows 7 (64 bit). The first error I received was the following:
'Missing or corrupt Windows.BT\Windows\System32\driver\iastor.sys' (0xc0000359). I found a fix for this to correct this error (involved downloading the latest drivers from Intel). I then attempted to proceed with the Windows 7 update. This time I received the error 'Missing or corrupt Windows.BT\Windows\System32\driver\winload.exe' (0xc00000f). Can you please give me some direction on successfully completing my Windows 7 Upgrade.

Thank you very much.

Ken
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#2
phillpower2

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Hello kwielechow1987

If the present Vista installation is the 32-bit version you cannot upgrade to a 64-bit version of Windows 7, for some information on this please see Here

If you are unsure of the present OS install details and the notebook will still boot up into Vista ok you should run the Windows 7 upgrade advisor and see what it reports.

Dell XPS M1530 notebook
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#3
kwielechow1987

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Hi Phil,

Thanks for replying to my issue. Late last night, I was able to complete the upgrade to Windows 7 successfully. I didn't realize that once I fixed the original problem 'iastor.sys' error, that I had to run the Windows 7 upgrade setup file again (start completely over again). Once I did this, the upgrade process worked and now my notebook is running Windows 7 Home Premium.

Thank you again for your quick response.

Ken
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#4
phillpower2

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Hello Ken

Pleased to hear that you have resolved the issue and thanks for posting the solution :thumbsup:

You are most welcome BTW :)
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