Run the TurboTax installer until the error dialog pops up. Click the close button since you can't go any further. Now press WinKey-R and type %TEMP% to go to the temporary folder. Copy the ckz_xxxx folder to the desktop. Select the setup.exe file and press CTRL-C then CTRL-V to make a copy.
Now use radare as follows:
Command | Description |
---|---|
r2 -A -w "setup - copy.exe" | analyze and allow writing |
axt str.Detected_OS_is_WIN_8_or_above | look for references to this string |
s 0x402ec2 | seek to the location that was found in the previous command |
VV | now we are at the node references the string. You need to reverse the opcode in the previous node by changing je 0x402ed9 to jnz 0x402ed9 |
Shift-TAB | go to previous node |
( | reverse the opcode |
exit from visual mode | |
q | quit radare |
Now you can click on "setup - copy.exe" and install without error. (Note that the Verified publisher says "unknown" even though we only changed one byte.)
Open the setup.exe file and at offset 0x000022c0 change the 74 to 75. Save it and you are done. Remember this offset only works with the version of TurboTax Deluxe mentioned above. If you have another version, follow the radare instructions above to find the right offset.
DISCLAIMER: This is for educational purposes only. Use TurboTax in Windows 7 at you own risk. It most likely will work just fine, but Intuit doesn't want to support older versions of Windows.
I'm getting this same error with my deluxe version: "It partially worked with my Home and Business version (same offset as above). The new setup-copy.exe runs, but as it starts installing, I get an error after the downloading files dialog gets to 100%. The error dialog says "Please help the TurboTax team eliminate this error by telling us what you were doing when this error occurred." There are fields for email address and description and a Send button." See attached for image of error dialog.