Standard Windows updates do not always install every version you need. Over time, users often face:
Download each redistributable from Microsoft:
Before running the All-in-One, go to . Uninstall any Visual C++ redistributable that shows a “repair” or “error” status. Do not uninstall all of them; just suspicious ones.
MSVCP120.dll is missing
A good All-in-One includes both x86 (32-bit) and x64 (64-bit) runtimes. Many users forget that a 64-bit OS still needs the 32-bit runtimes for older apps. The AIO handles this automatically.