Windows brutally slow on my iMac (Bootcamp)

Question

Hey guys,
first of all I would like to say sry, if my english isn't propper enough and lacks sometimes. I'm from germany...but anyway, here's my problem. ;-)
I have an 21,5 inch iMac mid 2011 with an intel i5, 4gb memory, AMD Radeon HD 6750 512 mb and a 500 GB Harddrive ( NOT SSD!! ).
All in all my iMac is working well with Mavericks on it but since last year I'm still trying to get windows work properly on it, but it just doesn't.
I tried different ways of installing windows on it. Through the normal BootCamp process, through a USB install method and also with a way, to install windows with VMware. It's a bit tricky cause you first start installing windows through the virtual machine, though it gets installed on a partition as a windows partition, just like bootcamp. But no matter what I tried, my windows is just slow, specially on the startup.
My last way to install it was this: I reinstalled mavericks, comepltley clean install. Updated mavericks, started bootcamp and went through the normal installation process. The bootcamp support software gets downloaded, a partition gets created and then it restarts to boot from CD to install windows then. In this case it is windows 8.1, but i tried it with 8 and also with 7 and it makes no difference. The installation process works well, without any problems. The drivers from the current bootcamp support software mostly gets installed automaitcally when windows starts the first time, if not, is just start the steup exe from within the support software. So far so good.
Now I finally will come to my problem...:D
Windows just runs slow like sh**. The boot process until i can log into my account works well, I have for example not the problem with the blinking cursor at the windows boot, like lot of people had. I'm within 23 seconds or so at the login window but then it's just horrible. When I type in my password it takes like 12 seconds to get me to the desktop and once Im on it, it takes 20-30 seconds more to get windows running so that I can open an internet browser. For example Skype, which I have in my autostart, takes at least 20 seconds to open and that's just not normal. I tried a lot, believe me....I tried disabling all the autostart programs, though I dont wanna disable them in general, cause I need a few in the autostart, but it didnt make a difference anyway. Even when I enable the automatic login that I dont have to type in my password, it makes no difference. Windows takes just years to get ready once Im on the desktop.
And again, all the drivers are up to date, I installed them from the newest bootcamp support software and even checked manually if updates are avaible.
To me it just seems that something is going wrong with the driver load at the beginning of windows. My hard drive istn broken as well, cause mavericks is running without any problems and also i checked the drive with many tools for problems. Yes, I defragmanted my drive under windows and I actually did everything you find on the interent. But still, it just makes no difference. I know that windows is propably not so fast at the start up but what I see isnt normal. I saw many macs on youtube with bootcamp windows on its and windows was running completley normal on it.
I mean, its not normal that it takes me up to 1 minute from the moment i type in my password, to get a browser open and google the internet. Oh and before I forget it, when I have a anti virus software installed and takes even longer...when i disable all anti virus malware else what programs, it gets a bit quicker, but i guess the problem sitll exist. Also I dont log into my windows with an internet microsoft account, its an offline sign in. Just saying that cause a lot of people on the internet say that the internet login can be slow someitmes.
So I have no more ideas what to do but I'm pretty sure there is a problem, it's not normal that it takes that long. I recently took a look into some boot log file on windows, dont know exactly what it was but there were many startup items which were causing problems and a slow startup proces. For example the "windows driver module" with the error code 101 took 9 seconds to load. But I have no clue about that boot analyze stuff, so I cant say more about that.
EDIT: One important note I should make, is, that after it takes that long to work properly, it runs pretty fast and nromal then. Its not that slow the whole time! It's just the start proces or better the login process, what I am talking about. Once the "years" are over whene I log into windows, it runs well then. Thats why I think something with the drivers isnt working properly. Also, in the moment when it takes that long, my hard drive is 100% in use when i look into the task manager...
I hope someone of you can help me and I'm looking forward to hopefully hear from you!!
again: sry for my english.
Cheers!
Max

Answer 1

Well...I have already checked msconfig and the automatic startup items. I have looked for all the non-microsoft things and disabled them, to see if it makes a difference. But it makes no difference. Disabling microsoft things in the msconfig isn't really what I wanna do, cause I have no clue about these system files.
I have also checked a boot analyze section to see if, and what causes trouble at the start. There were a couple of things which slowed down my start process. One thing that seemed to causes a lot trouble was a file called "windows driver installer module" or something like that. But its a system file, I cant simply delete it or something.
And before you say now: check for the newest drivers...I have the up to date drivers from the bootcamp support software and also checked manually for maybe an update. But it is as up to date as it gets. If it isn't a "bootcamp" issue, what is it then? I would agree with you that it isn't a bootcmap issue, cause bootcamp pretty much does nothing except downloading the support software and making a useless fat32 partition to boot off from...well if you have the usb install optoin, bootcamp does a bit more for you. But anyway... Whatever the problem is, it can't be solved be reinstalling windows or something like that. I reinstalled it many times, windows 7, 8 or 8.1. I fromated the whole system with mavericks to start it over then again, but there are still these problems. 14 seconds waiting when I type in my password, 30-40 seconds more once im on the desktop, until I can open a browser. The strange thing is, after that time, everything works well and windows is running fast..
You said, that almost have the same imac as me. So how exactly did you install windows? Was it like: You started bootcamp downloaded the support software on a usb drive, made a partition and booted off from an install ddvd to install windows?
Cause thats what I did, which is exactly the way it should be....Did you install windows only on a partition on your main hard drive or on a second hard drive?