If the installer cannot generate this instance ID due to offline connectivity (it checks the MetaQuotes ID server), the installer crashes.
Right-click the installer, go to Properties > Compatibility , and check "Run this program in compatibility mode for" . Select Windows 7 or Windows 8 from the dropdown menu. 4. Clear Residual Files for a Clean Install metatrader 4 windows offline installer fix
Several factors cause this process to fail: If the installer cannot generate this instance ID