This is how i solved my issue. There might be an easier way to do it but this is what worked for me.
Install Android sdk tools( would post a link but im too new)
once installed it will ask if you want to install a bunch of packages. Click Cancel.
In the android sdk and avd manager select "available packages" on the left hand side.
then you want to download
"Android SDK Tools, revision 11"
"Android SDK Platform-tools, revision 5"
"SDK Platform Android 2.2, API 8, revision 2"
"Google USB Driver PAckage, revison 4"
After all that is installed, find the root folder for which you installed the Android SDK software. Navigate through "Android-sdk>extras>google>usb_driver" In the usb_driver folder there is a setup information file called "android_winusb" Open that up in note pad and modify it like so (make a backup of the file just incase)
Under [Google.NTx86] add the following
;Dell Streak 7
%SingleAdbInterface% = USB_Install, USB\VID_413C&PID_B104
%CompositeAdbInterface% = USB_Install, USB\VID_413C&PID_B104&MI_01
Under [Google.NTamd64] add the same
;Dell Streak 7
%SingleAdbInterface% = USB_Install, USB\VID_413C&PID_B104
%CompositeAdbInterface% = USB_Install, USB\VID_413C&PID_B104&MI_01
Now save the file and try to update your Streak 7 by right clicking computer and selecting "Manage" then you should see your Dell Streak 7 listed and right click that and select update drivers. Select to browse for the update on your computer then navigate back to "Android-sdk>extras>google>usb_driver" Select just the "usb_driver" folder so it goes through all the subfolders in it and bam your device drivers should be installed and updated. This worked for me. Hopefully it will work for you too.