Latest meteor does not build my old app

l have a two year old meteor app that is running on 1.5.4
l upgraded windows last month to windows 10. One app is regularly updated, now 1.8 but l can’t update the old one. All commands line meteor update and even meteor --version hang on extracting or downloading meteor-tool@1.5.4
When l checked the meteor-tool folder my build folders (l tried more than once) contain only mt-os.windows.x86_32 folders and it does not download mt-os.windows.x86_64.
How to solve this issue ?

RESOLVED. uninstall 7zip and install 7zip for 64bit.