Vista - Vista boot times high even after tweaking

Hi, first I'd like to state that this has been a problem ever since I reformatted in about May this year, I use Vista Home Premium x86. Vista takes very long to boot, around 106 seconds using the ReBoot-Time application on this website and about 25 green bars on the loading screen. Before I reformatted, it was at 8 green bars. I've tried just about everything to get the boot speed down: defragging, boot defrag, registry defrag, disabling startup items, disabling services, etc. None of this seems to have much effect. I only have 8 things enabled in my msconfig startup tab:

Alps Pointing-device Driver (touchpad)
C-Major Audio (audio)
Kaspersky Anti-Virus
NVIDIA Compatible Display Driver etc. (GPU driveR)
Taskix (allows me to move taskbar items around, takes up only 350K memory)
Messenger
VistaBatterySaver
RightMark CPU Clock Utility (undervolting)

I went into Event Viewer after reading Microsoft’s hidden diagnostic tool unlocks Vista startup secrets | Ed Bott’s Microsoft Report | ZDNet.com to see if I could pinpoint anything, but I was surprised to find that the latest entry was back on August 27th. Why hasn't there been anything since? If it means anything, of the 106388ms it took to boot that day, the MainPathBootTime was 60088ms and the BootPostBootTime was 46300ms. Please help, help kindly appreciated!

Have You disabled "Ready Boost" service in the "services.msc", if You did Please set it to Automatic, & Reboot your system twice. I hope it'll solve Your problem.

ReadyBoot:

Windows Vista uses the same boot-time prefetching as Windows XP did if the system has less than 512MB of memory, but if the system has 700MB or more of RAM, it uses an in-RAM cache to optimize the boot process. The size of the cache depends on the total RAM available, but is large enough to create a reasonable cache and yet allow the system the memory it needs to boot smoothly.

After every boot, the ReadyBoost service (the same service that implements the ReadyBoost feature) uses idle CPU time to calculate a boot-time caching plan for the next boot. It analyzes file trace information from the five previous boots and identifies which files were accessed and where they are located on disk.
It analyzes file trace information from the five previous boots and identifies which files were accessed and where they are located on disk. It stores the processed traces in %SystemRoot%\Prefetch\Readyboot as .fx files and saves the caching plan under HKLM\System\CurrentControlSet\Services\Ecache\Parameters in REG_BINARY values named for internal disk volumes they refer to.

The cache is implemented by the same device driver that implements ReadyBoost caching (Ecache.sys), but the cache's population is guided by the ReadyBoost service as the system boots. While the boot cache is compressed like the ReadyBoost cache, another difference between ReadyBoost and ReadyBoot cache management is that while in ReadyBoot mode, other than the ReadyBoost service's updates, the cache doesn't change to reflect data that's read or written during the boot. The ReadyBoost service deletes the cache 90 seconds after the start of the boot, or if other memory demands warrant it, and records the cache's statistics in HKLM\System\CurrentControlSet\Services\Ecache\Parameters\ReadyBootStats, as shown in Figure 2. Microsoft performance tests show that ReadyBoot provides performance improvements of about 20 percent over the legacy Windows XP prefetcher.

I don't know how grateful of you I am, you've solved something that's bugged me for months and months! I went from 25 bars to 6, reboot time of 106 seconds to 70! Alright!

The other way to skin the cat if you're not using Ready Boost is disable it and set
Superfetch to only cache boot files. See the tutorial for how to do so. Note that I'm running 32 bit Vista but I'm pretty sure it works the same in 64 bit land.