Outdated Drivers Are Slowing You Down
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallcgsdk.x64_2015.dll is a 64-bit third-party game component, not a Windows system file. When Windows says cgsdk.x64_2015.dll is missing, was not found, or could not be loaded, repair the game or application that originally installed it rather than copying a DLL into a Windows folder.
Public file records attribute this DLL to Corsair Components, Inc. The filename strongly indicates a legacy Corsair Gaming SDK component, possibly used for hardware or lighting integration, but the exact original product name and purpose are not documented in current official Corsair material.
Quick identification
| Item | Confirmed information |
|---|---|
| File | cgsdk.x64_2015.dll |
| Architecture | 64-bit |
| Known version | 3.0.165.0, approximately 0.21 MB |
| Category | Application file |
| Windows component | No |
| Likely owner | A game or other application that bundled the Corsair SDK |
| Expected location | The game’s or application’s own installation directory |
Known game distributions include Far Cry 5, Far Cry New Dawn, and Metro Exodus. Other games may contain the same SDK, so identify the program named in your error before attempting a repair.
What the error means
You may see messages such as:
- “The code execution cannot proceed because CgSDK.x64_2015.dll was not found.”
- “This application failed to start because CgSDK.x64_2015.dll was not found.”
- “The file CgSDK.x64_2015.dll is missing.”
- “CgSDK.x64_2015.dll could not be loaded.”
- “Cannot find …CgSDK.x64_2015.dll.”
The capitalization may differ. Windows, the game launcher, and the application can display slightly different wording for the same problem.
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This file is normally placed beside the game executable or inside one of the game’s bin folders. It should not normally be in:
C:WindowsSystem32
C:WindowsSysWOW64
Having Corsair hardware or iCUE installed may explain why a game tries to use Corsair integration, but iCUE is not necessarily the owner of the missing file. Reinstalling iCUE usually will not restore a DLL that belongs to a game.
Fix 1: Verify the affected game or application
This is the most likely solution after an interrupted update, incomplete installation, manual deletion, disk problem, mod installation, or antivirus quarantine.
First, identify the affected program from the error dialog. If it names Far Cry, Metro Exodus, or another game, repair that game rather than Windows.
Steam
- Open Steam.
- Select Library.
- Right-click the affected game.
- Select Properties.
- Select Installed Files.
- Select Verify integrity of game files.
- Wait for Steam to complete the scan and redownload missing files.
- Start the game again from Steam.
A successful verification normally restores the DLL to the game directory. If Steam reports that files were replaced but the same error returns, restart Windows and verify the files again. A mod, security product, or damaged drive may be removing the file after Steam restores it.
Epic Games, Ubisoft Connect, or another launcher
The wording differs by launcher, but the process is similar:
- Open the launcher.
- Open your library.
- Find the affected game.
- Open its menu, usually represented by three dots or a gear icon.
- Choose Manage, Properties, Repair, or Verify.
- Allow the launcher to download replacement files.
- Start the game from the launcher.
If the launcher has no repair option, uninstall the affected game and reinstall it using its official launcher. Do not preserve a damaged installation folder unless the launcher specifically supports doing so.
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How to confirm the result
Open the game’s installation folder and check whether cgsdk.x64_2015.dll is beside the executable or in the expected bin directory. Do not judge the repair solely by the file’s presence, however. The game must also start successfully, and the file must not be immediately quarantined again.
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Fix 2: Check antivirus quarantine
Security software can quarantine a game DLL after an update or after its detection rules change. Check this before reinstalling the game repeatedly.
Windows Security
- Open Start and search for Windows Security.
- Open Virus & threat protection.
- Select Protection history.
- Review recent detections.
- Open any detection associated with the affected game directory.
- Check the file path and detection details.
- Restore or allow the file only if it came from a legitimate game installation and the path is correct.
Allowing a file reduces protection if that file is actually malicious. If the detection is unclear, do not restore it blindly. Instead, update Windows and your security software, verify or reinstall the game from its official source, and contact the game publisher if the same legitimate file continues to be detected.
If verification restores cgsdk.x64_2015.dll and antivirus removes it again, the quarantine history is the important clue. Do not solve that cycle by downloading a replacement DLL from an unrelated website.
Fix 3: Reinstall the official Microsoft Visual C++ runtime only for a runtime error
cgsdk.x64_2015.dll is not supplied by Visual C++ Redistributable. Installing Visual C++ will not recreate this Corsair SDK file.
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It may still be necessary if the next error names a Microsoft runtime file such as:
MSVCP140.dll
VCRUNTIME140.dll
VCRUNTIME140_1.dll
Use Microsoft’s latest supported Visual C++ Redistributable downloads. For a 64-bit game, install the official x64 package. Some games also include 32-bit helper programs, so the x86 package may be required when the error specifically concerns a 32-bit component.
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You can also use Microsoft’s direct installers:
After installation:
- Restart Windows.
- Run the game’s launcher verification again.
- Start the game.
- If the message still names
cgsdk.x64_2015.dll, return to the game repair steps. Visual C++ is not the source of that DLL.
Fix 4: Repair Windows components when other system errors are present
SFC and DISM repair protected Windows components. They are not expected to restore a game-owned Corsair DLL, but they are appropriate when Windows itself is reporting broader corruption, applications are failing in several unrelated locations, or system files are damaged.
- Open Start.
- Search for Command Prompt.
- Right-click it and select Run as administrator.
- Run this command:
DISM.exe /Online /Cleanup-image /Restorehealth
- Wait for DISM to finish.
- Then run:
sfc /scannow
- Restart Windows.
- Verify the affected game again.
Microsoft recommends running DISM before SFC. If SFC reports that it repaired files, test Windows and then test the game. If both commands complete without resolving the DLL error, that result is expected for an application file. Reinstall the owning game instead.
If repeatedly hunting through repair commands is becoming the problem, Outbyte PC Repair can scan for issues and show what needs attention, while its full version performs the repair. It is optional, and reinstalling the game remains the definitive fix when this DLL belongs to that game.
Fix 5: Check whether the game and DLL architecture match
The documented copies of cgsdk.x64_2015.dll are 64-bit. A 32-bit application cannot use a 64-bit DLL, and replacing it with a random 32-bit copy will not correct the installation.
Check the game’s own requirements and launcher configuration. Do not mix files from:
- A different game
- A different edition
- A different launcher
- A different update level
- A 32-bit installation
If the game has separate x86 and x64 executables, launch the supported executable through its official launcher. If the installation contains mismatched files after copying or modding, remove the modified installation and perform a clean reinstall.
Fix 6: Update or reinstall graphics and hardware drivers
A driver normally does not provide cgsdk.x64_2015.dll, so driver work is not the first repair. It becomes relevant when the DLL exists in the correct game folder but the game still crashes, displays a graphics error, or fails after a Windows or GPU update.
Use Device Manager
- Right-click Start.
- Select Device Manager.
- Expand Display adapters.
- Right-click your graphics adapter.
- Select Update driver.
- Select Search automatically for drivers.
- Restart Windows.
For a clean GPU repair, obtain the current driver from the graphics manufacturer’s official support page, uninstall the existing driver only when the manufacturer’s instructions require it, and install the correct 64-bit package for your Windows edition.
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Manually checking graphics, chipset, audio, and peripheral drivers can involve hunting through several model pages and guessing which versions are stale. Outbyte Driver Updater can scan and identify outdated drivers, while its full version installs updates; it is optional and does not replace repairing the game that owns this DLL.
Fix 7: Reinstall the affected game cleanly
Use this when verification does not restore the file, the installation repeatedly becomes damaged, or the game was moved between drives.
- Back up legitimate save files if they are not synchronized by the launcher.
- Remove incompatible mods and unofficial patches.
- Uninstall the game from its launcher or Windows.
- Restart Windows.
- Confirm that the old game folder is gone or contains no damaged leftover binaries.
- Install the game again from its official launcher.
- Run the game once before adding mods.
- If it works, add modifications one at a time and test after each change.
If the DLL disappears after a clean installation, inspect antivirus Protection History before changing anything else.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Fix 8: Investigate a startup error after uninstalling the game
If the error appears during Windows startup rather than when launching a game, the original game may have been removed while a startup reference remained.
Check these locations:
- Press Ctrl+Shift+Esc to open Task Manager.
- Select Startup apps.
- Disable an entry clearly associated with the removed game or launcher.
- Press Win+R, type
taskschd.msc, and press Enter. - Review Task Scheduler Library for an entry belonging to the removed application.
- Check shortcuts in the Startup folder by pressing Win+R, typing
shell:startup, and pressing Enter. - Remove only shortcuts that clearly point to the uninstalled program.
Do not delete unknown scheduled tasks or registry entries merely because they contain a DLL reference. If the program is still needed, reinstall it through its official installer and then uninstall it normally.
What not to do
Do not copy the DLL into System32 or SysWOW64
The known game distributions place this file with the game. Global copying can create version conflicts, break file verification, and expose Windows to an untrusted binary.
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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Do not download an isolated DLL
Random DLL download sites may provide malware, the wrong architecture, an incompatible version, or a file that does not match your game build. A replacement may also hide the real problem, such as an incomplete update or quarantine event.
Use the affected game’s official launcher, the application developer’s installer, or Microsoft’s official runtime downloads instead.
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Do not use regsvr32
regsvr32 is for registering certain COM and ActiveX DLLs. A game-loaded SDK library is not normally repaired by registration. Running a command such as regsvr32 cgsdk.x64_2015.dll can produce an entry-point or registration error and will not restore a missing game file.
Do not assume iCUE owns the file
Corsair attribution does not prove that iCUE installed the missing copy. Repair the application named in the error first.
FAQ
Is cgsdk.x64_2015.dll a Windows file?
No evidence supports that conclusion. It is an application DLL associated with game distributions and should normally remain in the game’s installation directory.
Is it 32-bit or 64-bit?
The documented file is 64-bit. Use the game’s supported x64 installation and never substitute a 32-bit DLL.
Which games are known to contain it?
Known examples include Far Cry 5, Far Cry New Dawn, and Metro Exodus. The exact contents can vary by game edition, launcher, and update.
Will installing iCUE fix the error?
Not necessarily. iCUE may explain why a game uses Corsair hardware integration, but the missing file is commonly bundled with the game itself.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Will Visual C++ Redistributable fix it?
Not directly. Visual C++ supplies Microsoft runtime libraries, not cgsdk.x64_2015.dll. Install it only when the error identifies a missing Microsoft runtime dependency.
What if the file exists but the game still will not start?
Read the next error carefully. The remaining cause may be a missing Visual C++ or DirectX component, a graphics driver issue, permissions, a damaged executable, or an incompatible mod. Verify the game and remove modifications before replacing individual files.
What if nothing works?
Perform a clean official reinstall, inspect antivirus quarantine, and contact the game publisher with the exact error, launcher, installation path, and verification result. If multiple Windows applications are damaged, use DISM and SFC, then consider System Restore for a recent system-wide change.
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