ok

You can't be understanding what I was saying.

The PSU is unimportant. The PSU remained the same for my benchmarks (although that too is unimportant). You claimed that you can't check power usage on a desktop, I said I can, and I have.

ok

I am aware of how to test a PC and run a benchmark, I run one every time I build, upgrade or repair a PC and before I start looking at a PC using AID64 Ultimate Edition.

Your points about power supply are invalid. Even if the power consumption was measured with a plug in power meter, provided the PSU remained unchanged it would flag up double the current draw after upgrading from XP to 7.

Reasons why I checked the current when running XP and 7 on the same PC, to find out the answer to this question. It was one of the biggest questions when 7 was released and as a lot of people come to me to upgrade their PCs I wanted to know the answer.

I don't have the benchmark reports on this PC, they have been archived some time ago but I'll gladly search for them if you want proof.

A clean optimised install of XP and a clean optimised install of 7 use similar power during normal use, windows 7 does use more resources and therefore more power but it's minimal. When running under full load they both use the same power. Saying that Windows 7 demands twice the power of XP is ludicrous. If your reports show that I suggest you check your Windows 7 install as it indicates to me that there is something running in the background which is very resource heavy. Was it a fresh, clean install from an OEM disc?

YOU SAY SO At least i know what true

like said a few times anybody things i am wrong ,check with any of big major robotics companies THEY are the only one thats a expert on this and ONLY they use windows xp instead of windows 7 and they better systems then us too ,that does know all lot about robots then we do

every post RICH you disagree with everything i say not what it is

THIS POST IS CLOSED BY ME

To follow - up on Rich's comments, the reason I asked if your win7 was fully patched is because there absolutely was a power draw issue on laptops when it was first released which would show results like you saw (and drain batteries in record time) but it has long since been patched.

My experience is that Win7 is far more stable and better in virtually every way to WinXP with only a very minor extra draw to power. If I get 10 minutes less battery life it is more than made up for in reduced aggrevation, faster bootup, and better performance.

@Robotmaker - no I don't

There is a reason why Microsoft has phased out support for XP. A reason why Windows 7 is fast becoming the popular choice of OS for Windows PCs. You will be hard pushed to find a portable PC (laptop, netbook, tablet) which runs XP yet battery life is one of the main concerns for their customers.

But let's ask robotics experts what they think rather than PC manufacturers...

yes thats what i said ask robotic engineers i have manty to list on them ,simple too go to support page and send a email to them PC manufactors only wont to sell PC so putting the lasted software only sells it faster for more sale i said it closed but will post a few robotic companies that are expert in the field not us. and you can in every every design they made,even the lastest only use WINDOWS XP or LINUX ONLY reason microsoft pahased out support is because of the new windows 7 and mostly in a year windows 7 will be phased out when other window editions come out LIKE WIDOWS 9 ,I HEARD FROM MY FRIEND he said they may give a new name mostly VISTA will be phased out first before windows 7

like windows 95 came out i had a compter using it and then went to windows 98 and so on