Like many people I have many different machines in the house and my Windows 7 machine upgraded without a hitch. When I say without a hitch, there have been a couple of blue screens and some odd behaviour, but it was installed a day after the launch.

An install on my Windows 8 Lenovo machine showed up the ugliness of Redmond launch in all its evil glory. I am not mincing my words because I have tried to do this install three times, and the last time was following Lenovo's instructions, so I am, to use an industry term, pissed off.

If you upgrade you are given confusing information and it is a lottery if your upgrade will hang.

First there is the confusing information. It is not clear when you take your media out of the drive and when do you put it back. The instructions from Microsoft are confusing and the whole idea of a multi-million dollar programming company insisting that an operating system need a user to sit by their machine to shove an SSD drive into the machine when it gets past the BIOS loading phase is just a joke. If you can't write a line of code to avoid that problem, then you have to question your ability to write something grown up like an operating system.

My upgrade stalled in the same point all three times -- 32 per cent. I am not sure what was happening at the point in the upgrade but Windows 10 went into a deep think from which it never emerged. I left it running but after six hours I think it was reasonable to assume the upgrade was never going to happen. A computer can do many things in six hours, and if it cant upgrade an operating system it is clearly broken.

Fudo had a similar problem which he fixed by turning off all his AV software. I tried that too, it did not work.

I did what any sane person would do and looked at the Internet and found that my problem has existed for months. Countless users in Microsoft's test groups all moaned the installation was reaching a magical number and then stopping.

Microsoft said that it had something to do with different things the operating system was connected to. AV software was problematic. Why? Microsoft did not say and in the month's leading to the launch none of them fixed the problem.

At no point though did Microsoft think "we will have to fix this before it goes live... otherwise there will be many people who have the same problem and this will make us look inept."

It might be a driver, it might be something I am connected to but both me and Microsoft have the same thing in common – we don't know what is causing the problem and we can't be arsed finding out what is causing the problem and fixing it.

I have rolled back everything to a point where Microsoft's Windows 10 has never touched my Lenovo Windows 8 machine. Anyone who upgrades any machine is taking a lottery that it will not work. This is something that Redmond cannot allow to have if it wants Windows 10 to take off. It would have been solved, had Microsoft listened to those complaints that were appearing on its user groups. It is important to point out that installation issues have sunk other OSs before.

My advice to Windows users is not to upgrade until Microsoft gets its shit together. It should take a few months, but there is no hurry. Windows 8 and 7 are good enough. The status quo is better than risking an afternoon on the off-chance that your upgrade will work.

I should point out that for all I moaned about Bill Gates and Steve Ballmer, I never had a problem upgrading any Windows software until the much praised Windows 10.