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Windows 7: BOOT process - strange lag before F8

24 Jan 2010   #1

Windows 7 Ultimate x64
BOOT process - strange lag before F8


I've encountered a strange problem. After switching on or rebooting PC, the POST screen shows up. Prints all the info about PC, drives, additional controllers. Right after that, it should find the boot drive, the boot partition and start booting, but there is a certain lag that bugs me. Everything stops for 2 or 3 seconds, screen is black but there is a cursor blinking in upper left corner. Then the screen fades to black and boot process continues. I can't do much during the lag. Only after it I am able to e.g. hit F8 to open boot menu(this one that allows me to choose for example Safe Mode).

That situation doesn't happen when I decide to boot from any other drive (including USB sticks) so it's certainly a W7 issue. I've enabled boot logging but it kicks in after the lag. It has something to do with the W7 loader itself.

I've made myself an image of a clean W7 installation (using ntfsclone, linux tool). Already restored it a few times, some time ago it worked like a charm, but recently I did restore it but I still get the lag(no hardware changes, one BIOS setting changed, but reverted it and still laggy). Unfortunately I forgot to backup the boot partition maybe that's the problem as the lag happens just as the boot process starts.

In the meantime I'll try to get myself a clean boot partition somehow, but I am still looking for suggestions.


My System SpecsSystem Spec
25 Jan 2010   #2

Windows 7 Ultimate x64


Found a partial solution. Maybe somebody will find that useful someday :]
It happened after I booted W7 with pendrive connected. Since then boot lags started. The solution was to recover boot partition(W7 install CD repair, showed no errors but fixed boot lag) and never boot system with USB stick connected otherwise the lag returns.
My System SpecsSystem Spec

 BOOT process - strange lag before F8

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