RegistryValueWrite help

You need DirectoryMoveOK=yes to prevent that warning.

You've got a few bad things in there:

[RegistryKeys]
odk=HKCU\Software\FranmoSoftware
odk=HKCU\Software\FranmoSoftware\Odkurzacz
odk=HKCU\Software\FranmoSoftware\Odkurzacz\Ustawienia
odk=HKCU\Software\FranmoSoftware\Odkurzacz\Ustawienia\Konta

Keys should be unique. In this case, it looks to me like you probably want this:

[RegistryKeys]
odk=HKCU\Software\FranmoSoftware\Odkurzacz

[RegistryCleanupIfEmpty]
1=HKCU\Software\FranmoSoftware

(I have selected HKCU\Software\FranmoSoftware\Odkurzacz as the key you're actually wanting to grab. I assume FranmoSoftware remains empty other than the Odkurzacz key.)

[RegistryCleanupForce]
1=HKCU\Software\FranmoSoftware
2=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA1-591C-11D0-BF52-0020AF32BD64}
3=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA3-591C-11D0-BF52-0020AF32BD64}
4=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA5-591C-11D0-BF52-0020AF32BD64}
5=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA7-591C-11D0-BF52-0020AF32BD64}
6=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA1-591C-11D0-BF52-0020AF32BD64}
7=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA3-591C-11D0-BF52-0020AF32BD64}
8=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA5-591C-11D0-BF52-0020AF32BD64}
9=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA7-591C-11D0-BF52-0020AF32BD64}
10=HKLM\SOFTWARE\Classes\TypeLib\{83F57D68-CA9A-11D2-9088-00C04FA35CFA}

You should absolutely not be doing that! That will break a local installation badly. That isn't the sort of management you want.

Also be aware that using HKLM\SOFTWARE\Classes may or may not cut it. It depends on whether the software you're dealing with works in HKLM or HKCU. If it can use HKCU, use HKCR and I believe you'll cover both. (I'm actually not quite certain of the behaviour; I've never traced it through. There's a possibility it'd take from HKLM and put into HKCU.)

You want [RegistryKeys] with the key - (as mentioned in the manual). That's an exception to what I was saying earlier: it is permitted to have duplicate keys. (Off-hand, though, I believe it's the only thing in PAL which can.) Merge it with the other RegistryKeys section. (You can't duplicate a section.)

-=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA1-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA3-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA5-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8D2FA7-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA1-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA3-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA5-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\CLSID\{9E8D2FA7-591C-11D0-BF52-0020AF32BD64}
-=HKLM\SOFTWARE\Classes\TypeLib\{83F57D68-CA9A-11D2-9088-00C04FA35CFA}

[FileWrite]
Type=INI
File=%PAL:DataDir%\settings\
Section=HKCU\Software\FranmoSoftware\Odkurzacz
Section=HKCU\Software\FranmoSoftware\Odkurzacz\Ustawienia
Section=HKCU\Software\FranmoSoftware\Odkurzacz\Ustawienia\Konta

Huh? This doesn't do anything because [FileWrite] isn't a valid section [FileWriteN], and (b) has no meaning as it's incomplete (bad File entry, lacking a Value value and with multiple values for Section).

[FileWrite1]
Type=Replace
File=%PAL:DataDir%\settings\classesx86.reg
Find=%PAL:LastDrive%
Replace=%PAL:Drive%

[FileWrite2]
Type=Replace
File=%PAL:DataDir%\settings\classesx86.reg
Find=%PAL:LastPackagePartialDir%
Replace=%PAL:PackagePartialDir%

[FileWrite3]
Type=Replace
File=%PAL:DataDir%\settings\classesx64.reg
Find=%PAL:LastDrive%
Replace=%PAL:Drive%

[FileWrite4]
Type=Replace
File=%PAL:DataDir%\settings\classesx64.reg
Find=%PAL:LastPackagePartialDir%
Replace=%PAL:PackagePartialDir%

You don't have a classesx86 or a classesx64 in [RegistryKeys] so these do absolutely nothing (Data\settings\classesx86.reg won't exist). You should remove these as they serve no purpose. Those sorts of type library and DLL server registrations do not need to be saved (which is why the keys were - rather than something else).