If you don’t feel comfortable doing this, uninstall and reinstall is a safe choice. Note that it involves editing the registry, which can be hazardous to your computer’s health. Unfortunately, the original RTM installer doesn’t rewrite those registry values when you do a repair, so what works is to uninstall and reinstall RTM, then SP1, then SP2. It checks the version information in language.dll to make sure it has the same language as the SP2 installer otherwise, you’d end up with a broken mix of localized content.) (It uses the data in the registry to find the installation directory and the language.dll file. Service Pack 2 requires the registry data that the original RTM and SP1 installers write. That’s not officially supported, of course, but given the size of Flight Simulator, it’s fairly common to want to move the installed files (to a bigger partition, for example) without reinstalling. During testing, the root cause was also the same: Copying the installed files from another partition or machine rather than using the installer. So far, the immediate cause is the same: missing data in the registry.
#Microsoft fsx acceleration simulator#
When installing FSX Service Pack 2, you might see this message: “Microsoft Flight Simulator X Service Pack 2 requires the English version of Flight Simulator X.” Setup developer Bob Arnson offers this workaround to a common issue on his blog: