One of the applications I use shows Chinese and Japanese text in jumplist as squares. This is happening only on one computer. I tested it on some several other (32 and 64 bit) computers and it is showing everything correctly. The computer that it is not working correctly is running 32bit version of Windows 7 Ultimate. All computers are running English version of windows 7. What can be the reason of the strange behavior? How can I fix it?
Looks like you're missing the necessary East Asian fonts. That component should be installed by default (it was not a default component in XP), so unless you customized your install in some way or if they somehow got uninstalled, this should not be happening... do a comparison of the fonts folder between your different Windows 7 machines to confirm whether this diagnosis is correct. If it is, just copy the missing fonts from one of the good machines.
it has nothing to do with the lack of fonts... 7 installs all of them anyway... the issue is the default code page... applications that require PC98/Shift-JIS or GB2312 encoding (aka non-unicode) cannot work while your default code page is set to anything but Japanese or Chinese to fix this: go into control panel open region and language click on the administrative tab click on "change system locale" and select Japanese or Chinese reboot and it should work