[Android Software Development] matsounds:
Quick fix for Windows 7 64bit OS

I had the same problem so I did it step by step from the .bat file and removed all that was causing the problem... See below and you WILL need to have and know how to use "SDK" and the "adb.exe" program (It's not hard... I'm still kinda a noob my self but this is how you had to root the Thunderbolt so I have done things this way before)

Make sure you have unziped and copied the following files to the "adb"
program folder from the "DooMLoRD's Easy Rooting Toolkit [v4.0](zergRush Exploit)" zip file
(Hint: the files should be in the same folder as the "adb.exe" program)
1-"AdbWinApi.dll"
2-"AdbWinUsbApi.dll"
3-"busybox"
4-"makespace"
5-"su"
6-"Superuser.apk"
7-"zergRush"
(DO NOT COPY THE "adb.exe")

******COPY AND PASTE "EVERYTHING" BETWEEN THE AAROWS -->CODE<--******

(1--- Checking for DEVICE)
(1-A)Copy and paste to adb-->adb devices<--
*If it says your device code name and next to that "device" then go to next step*

(2--- creating temporary directory)
(2-A)Copy and paste to adb-->adb shell "cd /data/local && mkdir tmp"<--
*If it says "mkdir failed for tmp, File exists" just go to the next step*

(3--- cleaning)
(3-A)Copy and past to adb-->adb shell "cd /data/local/tmp/ && rm"<--

(4--- pushing zergRush)
(4-A)Copy and paste to adb-->adb push zergRush /data/local/tmp/.<--

(5--- correcting permissions)
(5-A)Copy and past to adb-->adb shell "chmod 777 /data/local/tmp/zergRush"<--

(6--- executing zergRush)
(6-A)Copy and paste to adb-->adb shell "./data/local/tmp/zergRush"<--
***This will run a program file that may take a few min***

(7--- WAITING FOR DEVICE TO RECONNECT)
(7-A)Copy and paste to adb-->adb wait-for-device<--

(8--- CHECKING FOR DEVICE)
(8-A)Copy and paste to adb-->adb devices<--
*If it says your device code name and the next to that "Device" the go to next step*

(9--- pushing busybox)
(9-A)Copy and paste to adb-->adb push busybox /data/local/tmp/.<--

(10--- correcting permissions)
(10-A)Copy and paste to adb-->adb shell "chmod 755 /data/local/tmp/busybox"<--

(11--- remounting /system)
(11-A)Copy and paste to adb-->adb shell "/data/local/tmp/busybox mount -o remount,rw /system"<--

(12--- checking free space on /system)
(12-A)Copy and paste to adb-->adb push makespace /data/local/tmp/.<--
(12-B)Copy and paste to adb-->adb shell "chmod 777 /data/local/tmp/makespace"<--
(12-C)Copy and paste to adb-->adb shell "./data/local/tmp/makespace"<--

(13--- copying busybox to /system/xbin/)
(13-A)Copy and paste to adb-->adb shell "dd if=/data/local/tmp/busybox of=/system/xbin/busybox"<--

(14--- correcting ownership)
(14-A)Copy and paste to adb-->adb shell "chown root.shell /system/xbin/busybox"<--

(15--- correcting permissions)
(15-A)Copy and paste to adb-->adb shell "chmod 04755 /system/xbin/busybox"<--

(16--- installing busybox)
(16-A)Copy and paste to adb-->adb shell "/system/xbin/busybox --install -s /system/xbin"<--
(16-B)Copy and paste to adb-->adb shell "rm -r /data/local/tmp/busybox"<--

(17--- pushing SU binary)
(17-A)Copy and paste to adb-->adb push su /system/bin/su<--

(18--- correcting ownership)
(18-A)Copy and paste to adb-->adb shell "chown root.shell /system/bin/su"<--

(19--- correcting permissions)
(19-A)Copy and paste to adb-->adb shell "chmod 06755 /system/bin/su"<--

(20--- correcting symlinks)
(20-A)Copy and paste to adb-->adb shell "rm /system/xbin/su"<--
(20-B)Copy and paste to adb-->adb shell "ln -s /system/bin/su /system/xbin/su"<--

(21--- pushing Superuser app)
(21-A)Copy and paste to adb-->adb push Superuser.apk /system/app/.<--

(22--- cleaning)
(22-A)Copy and paste to adb-->adb shell "cd /data/local/tmp/; rm *"<--
(22-B)Copy and paste to adb-->adb shell "cd /data/local/tmp/; rm"<--

(23--- rebooting)
(23-A)Copy and paste to adb-->adb reboot<--

**************************DONE!**************************
Your device should reboot and start up normal and you should see a new app called
"Superuser" in your apps menu. Also once your system has finished rebooting go to the market place and download "Rom Manager"
when it has finished downloading open it up from the app menu and look for "Fix Permissions" click it and
tell it "yes"........ This will help to correct and take control of the system.

After you have done all the steps above then your should be rooted!

Enjoy :)