Having problem updating XCTU ver. 5.2.8.6 installer on window 7

When installing XCTU, i was asked if i would like to update the XCTU (recommended). After pressing yes, there is an error coming out saying Microsoft Visual C++ problem, then installation failed.

If i press No to update, when i connect my Xbee to my laptop, i couldn’t Read it, when i press the read button, i was ask to update, then it shows an invalid argument was encountered.

Hi,

Did you download X-CTU from the following link, http://ftp1.digi.com/support/utilities/40003002_C.exe ?
(Run as Administrator).
I m also using Windows 7 and it works for me.
Unistall and install again and see it it works.

http://s262.photobucket.com/user/Wimpish/media/Capture.png.html

This picture above is what it shows when i want to update during installing

Which version of Windows are you using?
is it 32 bit or 64 bit?

32 bit, is that the problem?

X-CTU supports 32 bit. There is no such problems. I m using 64 bit and x-ctu works well for me.
If possible can you try with different PC?