Thinkpad X220 clean install troubles (Windows 7 USB/DVD Tool)

[MrDongji]

Hi all,

Apologies if this has been answered prior (I've searched through the forums for viable solutions).

I decided to format my hard drive on my Lenovo Thinkpad X220 laptop and perform a clean install of Windows.

Since my laptop lacks a CD drive, I proceeded to download a Windows 7 Professional .iso file in hopes of using it as a

bootable USB tool.

Extracted the .iso file to the USB, went in BIOS and selected the USB, but to no avail.

Decided to download the Windows 7 USB/DVD tool exe with the .iso file I still had, but ended up receiving this prompt:

After a bit of googling, apparently there's a bypass to this by switching the .iso file to UDT (however the .iso file I had was already listed as UDT).

If anyone has had any experiences with this, I would love to hear your feedback or advice.

[sarbin]

did the site you got the iso from list an md5 checksum? if so, you may with to check your download file to rule out a corrupt file. i've never used the microsoft tool you're trying, but the bit i read about seems to indicate that all you need is the iso, a suitable usb stick and the app. since it's complaining about the iso, i'd check its validity.

sorry if you've already done all of this...

[goretsky Community Moderator]

Hello,

I downloaded the Windows 7 Profesional SP1 x64 .ISO from Microsoft and used the Windows 7 USB/DVD Tool to create a bootable USB flash drive for a clean install of Windows 7, just as you did, several weeks ago.  I had no problems making the flash drive or installing Windows 7, so I suspect it was a bad download.

Regards,

Aryeh Goretsky

[sarbin]

great confirmation, Aryeh, that all the pieces should fit together!

[MrDongji]

I suspected the same, but I guess we'll see after I download another .iso.

I'm grateful for the feedback, thanks to you both! I'll try to update soon.

[sarbin]

'welcome!

[MrDongji]

Update 1: So I downloaded another .iso file, but it must have been corrupt as well since I ended up with the same prompt.

Do you guys mind if you re-direct me to another valid .iso file for Windows 7 Professional x64?

Thanks, will update.

[sarbin]

i will defer to Aryeh since his experience was successful. i'm sure he'll be along.

please bear with us.

cheers.

[Hiro Support Specialist]

Hey MrDongji,

Just wanted to ask if you were downloading them from the Microsoft site or a third party? For example this link:

http://www.w7forums.com/official-windows-7-sp1-iso-image-downloads-t12325.html

Best Regards,

Hiro

[MrDongji · Accepted solution]

Hi Hiro,

I believe I downloaded both .iso files from this website here which has the same links.

Looks like the .iso files were corrupted (I've heard some people had to re-download sometimes).

I looked for alternatives and ended up finding one that worked.

Thanks for the help.