Windows 7 64Bit - no driver found

[kusiub]

I have problem with installing w7 x64.
I did install w7 x86 without any problems from USB.
Recently i bought another 4GB RAM so i want to switch to x64. Now x86 is using only 3.5 from my 6
I have w7 x64 USB install. Tried AHCI, IDE, and all tutorials nothing help
Installator cant find any hd's to install system on them.
But when is asking me to find a driver, i can browse trough all of my disks.
Is there any way to install windows without installator?
Or maybe someone knows any way to fix this?
Thanks.

PS.
Sorry for my english

 

[gregrocker]

If you have a Vista DVD, you can try booting from it until it gets to the Custom drives screen where you choose HD to install, then switch the DVD in drive to Win7.

Try pulling out the HD to install Win7 in another computer. This has worked for me a dozen times when I didn't want to waste time troubleshooting installation.

 

[kusiub]

I understand that i have to use Vista x64?

 

[Saltgrass]

Have you tried removing the additional RAM?

 

[gregrocker]

Try all of the above. Plus reset CMOS: Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS