Hi Thunder Jim,

Thanks for posting about your experience with Windows 10 on the Dell Community forum. 

Regards,
Robert

Can you give me the link to download the iso file

Both the 32 and 64 bit versions are here. You have to run "Update this PC now" to upgrade from 7 or 8 for free. Once upgraded and activated you can reinstall from scratch for a clean install. But you MUST get the free activation first. Once activated your machine is recorded and you can clean install as many times as you like and it will reactivate automatically.https://www.microsoft.com/en-us/software-download/windows10

I own several Dell machines, among them 2 Precision, a 690 and a T7400, both with enough memory and disk.

The graphical adapter is a Nvidia Quadro FX 4600 in the P690 and a Nvidia Geforce GT 640 in the T7400.

My main OS is Linux, though on both Windows 7 is installed, all the 64-bit versions.

On the P690 the Home (premium) version. on the T7400 the Pro version.

All legal and activated.

Microsoft tells me that both machines can be upgraded.

At least 10 times I tried to upgrade the Win 7 Pro on the T7400 to Win 10 and it failed every time.

64-bit Windows 10 Virtual Machines (VMware 11 Linux) run perfectly on the T7400.

All error messages bring me 'somewhere else', up to "you have to find it out for yourself" (Microsoft).

One suggestion was the Adaptec 64-bit SCSI controller (39160), which I removed, no succes.

 Eventually I upgraded the T7400 BIOS to A11, no change.

This week I overwon my aversion against MS and tried to upgrade the P690, which went flawlessly.

Only one problem was found with an application, Paragon (Backup and Restore), the new version of the program supports W10, so that's no problem.

For some technical applications I need Windows, so I want to know what to do to get Windows 10 Pro 64-bits installed on my 'main' machine, the Dell Precision T7400.

Go into bios and disable the bit protection in Security. That is what I had to do and Win10 - 64bit loaded perfect after that.

Thanks for the suggestion, which sounded familiar.

Alas, I ended up with the same error 0xC1900101-0x30018 and the suggestion to look for myself on the internet for the WHEA UNCORRECTABLE ERROR.

So I found the 'solved' thread about the error, with lots of suggestions, no one of the kind "one size fits all". Apparently it's rather critical.

We had this method with our PDP-8/E, "remove all alien boards", which means to strip the machine to its essential parts. I'll try that.

Then there was a suggestion about the graphics card, the only possibility is to interchange it with the card in my 690.

I'll be back.

Success!

The suggestions were plentyful, from changing the HDD to changing the graphics card, removing all attached devices to ... , found a lot at tenforums.com, while Microsoft tells me that the machine is suitable for upgrade, including all applications.

The question remained, why can I upgrade Windows 10 without problems only on the one (P690) of the two similar Dell machines, with a similiar configuration as the other (T7400). The T7400 was even 'more suitable', only one type of RAM chips and no 'incompatible' software installed.

The method that eventually worked for me was to download the media creation tool (MediaCreationToolx64.exe) and with that application download the DVD and not to create the DVD, but install Windows 10 from there, without keeping any data or applications. That option is given by Microsoft. No adapters or devices were removed. Creating and using the DVD is no option for upgrade.

The data is preserved at "Windows.old", so that's no problem and for me there are only a few applications to reinstall.

I had to change Workgroup- and machine names to make all accessible over the local network.

Installing printers is the only thing with minor problems to be solved, as well as the '3-D' graphics of some application.

WIndows10Pro64 is successfully installed on the T7400 and was activated with the installation, my important applications run on it and "a machine with no problem is no fun", as people suggest about me.

So I thank all the posters for all suggestions, which kept me out of my bed and off the street.

The suggestion to buy another machine was and is no option, I love these Dell workhorses for many reasons.

I also have a Dell Precision 690 (at work) and like I stated the only issue I had was the security setting in bios. It cause a "Unsupported Proccessor" error when trying to load Win 10. Also, there were not a lot of Win 7 drivers available for this machine that Win 10 could use. And though Vista drivers work for Win 7 they do NOT work for Win 10. Once updated to Win 10 and activated I went ahead and did a complete wipe of the drive and re-installed Win 10 from scratch (clean) with no re-activation issues. I also Have a T7400 (home) that had a old audio card that used Vista drivers that I had to remove in order for Win 10 to load. I had already disabled the security bit in bios though so I could not tell you if that was an issue with it or not. Both machines now run clean installs of Win 10 pro and like you I love the robust and rock solid dependability of these machines. As a side note, I originally had 32 bit versions of Win 7 Pro so had to upgrade to Win 10 pro 32 bit to get Win 10 activated on these machines. So once it was done I did a complete clean reload with 64bit Win 10 just so it supported the added RAM these machines can run. 16Gb on the 690 and 12 on the T7400. Yea I had a few driver issues like my old Lexmark Laser printer but found another Lexmark driver for a similar model that works just fine. Takes a bit of doing but eventually I got all devices in Device Manager running with no issues on both machines. Totally happy. {:>)