Trying to launch Assassin’s Creed 4 Black Flag but getting the annoying “MSVCR100.dll is missing” error? This is one of the most common issues in PC games — but don’t worry, you can fix it in just a few minutes.
In this guide, I’ll show you the fastest and safest method to fix this error permanently.
👉 Also Read: Fix MSVCR110.dll Error in Watch Dogs 2
Step 1: Download Microsoft Visual C++ Redistributable 2010
Step 2: Install both x86 and x64 versions
Step 3: Restart your PC
Step 4: Launch the game again
If the error still appears, try these:
Never download DLL files from random websites. These files may contain viruses or malware. Always use official Microsoft sources.
The MSVCR100.dll error is not serious — it simply means your system is missing required runtime files. Installing the correct Visual C++ package will fix the problem instantly.
What is MSVCR100.dll?
It is a system file required by many games and apps, included in Microsoft Visual C++.
Is downloading DLL files safe?
No. Always install official Microsoft packages instead.
Why does this error occur?
Because required Visual C++ libraries are missing or corrupted.