Halloween DealsAmazon USHalloween week deals: useful picks before month-endAmazon US: current deals, useful picks and tech finds.Check DealsPC HealthRecommendedCrashes, freezes, slowdowns? Check your PC nowSpot repairable issues before they interrupt work.Check PCHalloween DealsAmazon USOctober picks are moving - compare before checkoutAmazon US: current deals, useful picks and tech finds.See Picks×
FREEDOM251

Freedom251 › Blog › DLL errors

How to Fix the “ubiorbitapi_r2.dll Is Missing” Error

By Freedom251 Team · · 9 min read

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

If a Ubisoft PC game says ubiorbitapi_r2.dll is missing, restore the file through the game’s official launcher or storefront. Verify the installation in Ubisoft Connect (or Steam if you bought the game there), restart the launcher, and reinstall the complete game or Ubisoft Connect if verification cannot recover it. Do not download the DLL from a mirror, copy it into a Windows system folder, or run regsvr32 as a generic fix.

What ubiorbitapi_r2.dll is

ubiorbitapi_r2.dll is associated with an older Ubisoft Game Launcher, formerly known as Uplay, and is used by some Ubisoft PC games. It is a game or launcher component, not a standard Windows system DLL. The filename alone does not identify one universal download: the correct copy must match the game, launcher build, and installation that produced the error.

As an Amazon Associate I earn from qualifying purchases.

Windows may display messages such as “ubiorbitapi_r2.dll is missing from your computer,” “The code execution cannot proceed,” or “The program can’t start because ubiorbitapi_r2.dll was not found.” These messages mean the game could not load a required component. They do not, by themselves, prove that Windows is damaged or that the computer is infected.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Why the error appears

  • Incomplete or damaged game files: an interrupted download, disk error, failed update, or corrupted installation can leave the component absent or unusable.
  • A launcher migration or update: older Ubisoft titles can depend on components associated with the former Uplay/Game Launcher while being started through a newer launcher.
  • Security-software quarantine: antivirus or endpoint software may have removed a legitimate game file. The quarantine record is the place to check; downloading a replacement from an unrelated site is not a safe substitute.
  • Storefront mismatch: a game installed by Steam must be repaired through Steam’s files, while a Ubisoft Connect installation should be repaired in Ubisoft Connect. Repairing a different copy may leave the affected installation unchanged.
  • A different missing dependency: an error naming MSVCP*.dll, VCRUNTIME*.dll, or api-ms-win-crt-*.dll points to a Microsoft Visual C++ runtime issue rather than this Ubisoft component.

The exact game, launcher build, Windows edition, and storefront determine which repair path applies. Start with the source that actually owns the installed game.

#1 Best Overall
Xbox Game Pass Ultimate – 1 Month Membership – Xbox Series X|S, Xbox One, Windows, Cloud Gaming Devices [Digital Code]
  • GAME PASS ULTIMATE: Play new games on day one, and enjoy hundreds of high-quality games on console, PC, and cloud. Game Pass Ultimate also includes online console multiplayer, EA Play, and other great member benefits.
  • SOMETHING FOR EVERYONE: From fast-paced action and adventure to timeless classics, family-friendly games, innovative indie titles, brain-teasing puzzles, immersive roleplaying adventures, and intense shooters. Dive into a world where every gamer can find their next favorite game.
  • NEW GAMES ON DAY ONE: Enjoy incredible new games on day one from Xbox Game Studios, Bethesda Softworks, Activision Blizzard, and more. Play The Outer Worlds 2, NINJA GAIDEN 4, and High on Life 2 as soon as they are released.
  • ONLINE CONSOLE MULTIPLAYER: Tap into the heart of the Xbox community and join millions of players ready to play together. Online console multiplayer is included with Game Pass Ultimate.
  • EA PLAY MEMBERSHIP INCLUDED: Jump into Battlefield, STAR WARS, and other great game franchises with EA Play. Included at no extra cost, members get access to a collection of EA’s best-loved games, in-game rewards, and trials of select new games.

First, record the exact error and installation source

  1. Copy the filename exactly as shown. Confirm that it is ubiorbitapi_r2.dll, including the spelling and the r2 suffix.
  2. Note the affected game and whether it starts from Ubisoft Connect, Steam, or another legitimate storefront.
  3. Write down what changed immediately before the failure, such as a game update, launcher update, reinstall, disk move, or security-software alert.
  4. Do not delete random DLLs or make changes to C:WindowsSystem32 or C:WindowsSysWOW64 while diagnosing the problem.

This short record prevents a common mistake: repairing one installation while launching a second copy in a different library.

Fix 1: verify the game in Ubisoft Connect

Use this route when Ubisoft Connect manages the affected installation. The wording of menus can vary slightly by launcher version, but the operation is the game’s file-verification or repair command.

  1. Open Ubisoft Connect and sign in to the account that owns the game.
  2. Open your games library and select the affected title.
  3. Open the game’s Properties or Manage menu.
  4. Choose the option labeled Verify files, Verify game files, Repair, or equivalent.
  5. Allow the check to finish. If Connect reports missing or damaged files, let it redownload or rebuild them completely.
  6. Restart Ubisoft Connect after the operation and launch the game from the library.

Keep the launcher open and avoid shutting down the computer while files are being replaced. A successful verification that downloads the missing component indicates that the original game installation was incomplete or damaged. If the check completes without downloading anything and the same message remains, continue with the next section instead of repeatedly running the same check.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Fix 2: verify the game through Steam

Use Steam’s verification when Steam installed or maintains the game. Ubisoft Connect may still open during launch, but Steam remains the source that can restore files in its library.

Rank #2
Tom Clancy’s Rainbow Six Siege 1,200 R6 Credits | PC | Ubisoft Connect [Online Game Code]
  • 1,200 in-game credits for Tom Clancy’s Rainbow Six Siege.
  • Use these credits in-game to purchase the newest Operators, uniforms, weapon skins, charms, and more!
  • R6 Credit code will be delivered via email from Amazon and redeemed in the Ubisoft Connect launcher
  1. Open Steam and select Library.
  2. Right-click the affected Ubisoft game and choose Properties.
  3. Open Installed Files.
  4. Select Verify integrity of game files.
  5. Wait for Steam to compare the installation and reacquire any missing or damaged files.
  6. When the process finishes, restart Steam and Ubisoft Connect if both are used, then try the game again.

Steam may report that files were reacquired without identifying the DLL by name. That is normal for a file-integrity operation; the useful result is whether the game starts after the replacement completes.

Fix 3: restart both the launcher and the computer

Close the game and exit the launcher rather than merely closing its window. If the launcher remains in the notification area, use its exit command, then reopen it. Restart Windows before testing again. This gives the launcher a clean session after verification and ensures that a file held open by a previous process is not still being used.

Do not treat a restart as a replacement for verification. It is a follow-up step after the official client has checked or restored the installation.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Fix 4: reinstall the complete matching installation

If verification fails, stops with an error, or reports no repair while the message persists, reinstall the complete game from the legitimate storefront. Reinstalling one DLL is less reliable because the game may require a specific matching set of files and launcher components.

Rank #3
Xbox Game Pass Ultimate – 3 Month Membership – Xbox Series X|S, Xbox One, Windows, Cloud Gaming Devices [Digital Code]
  • GAME PASS ULTIMATE: Play new games on day one, and enjoy hundreds of high-quality games on console, PC, and cloud. Game Pass Ultimate also includes online console multiplayer, EA Play, and other great member benefits.
  • SOMETHING FOR EVERYONE: From fast-paced action and adventure to timeless classics, family-friendly games, innovative indie titles, brain-teasing puzzles, immersive roleplaying adventures, and intense shooters. Dive into a world where every gamer can find their next favorite game.
  • NEW GAMES ON DAY ONE: Enjoy incredible new games on day one from Xbox Game Studios, Bethesda Softworks, Activision Blizzard, and more. Play The Outer Worlds 2, NINJA GAIDEN 4, and High on Life 2 as soon as they are released.
  • ONLINE CONSOLE MULTIPLAYER: Tap into the heart of the Xbox community and join millions of players ready to play together. Online console multiplayer is included with Game Pass Ultimate.
  • EA PLAY MEMBERSHIP INCLUDED: Jump into Battlefield, STAR WARS, and other great game franchises with EA Play. Included at no extra cost, members get access to a collection of EA’s best-loved games, in-game rewards, and trials of select new games.

Reinstall the game

  1. Back up any local saves or configuration files that the game does not synchronize, using the game’s documented save location when known.
  2. Uninstall the affected game through the storefront that installed it.
  3. Restart Windows if the uninstaller requests it.
  4. Install the game again from your Ubisoft Connect library or the Steam library where you purchased it.
  5. Allow every game and launcher update to finish before starting the title.

Reinstall Ubisoft Connect when the launcher itself is suspect

If several Ubisoft titles fail with launcher-related messages, or the Connect client cannot complete verification, reinstall Ubisoft Connect through Ubisoft’s official installer or support route. Keep the game installation only if the launcher offers a supported way to detect it; otherwise, follow the client’s own library-management instructions. The goal is to restore the complete, matching installation rather than to place a loose DLL in a system directory.

Check antivirus quarantine before reinstalling again

Open your security software’s quarantine, detection history, or blocked-items view and search for the exact filename. If it shows that ubiorbitapi_r2.dll was removed from the game directory, use the security product’s documented restore process only when you are certain the game came from a legitimate source. Then run the official game or launcher verification so the file is restored from that installation.

If the security product removes the file again, do not keep downloading replacements. Record the detection name, the game path, and the time of the event, and use the security product’s support guidance together with Ubisoft’s support process. A repeated quarantine event needs to be assessed by the security software and the game publisher; an unknown DLL mirror cannot establish that the file belongs to your particular game build.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Do not use a standalone DLL download

  • Do not download ubiorbitapi_r2.dll from a DLL mirror, forum attachment, or file-sharing page.
  • Do not copy it into C:WindowsSystem32 or C:WindowsSysWOW64.
  • Do not copy a file from another computer or another Ubisoft game and assume it is interchangeable.
  • Do not run regsvr32 as a generic repair. This component is not repaired by registering an arbitrary downloaded copy.

Those approaches can introduce an untrusted file, create a version mismatch, or leave the actual game installation damaged. Official verification and a complete reinstall keep the file tied to the game and launcher that need it.

Rank #4
Tom Clancy’s Rainbow Six Siege 2,670 R6 Credits | PC | Ubisoft Connect [Online Game Code]
  • 2,670 in-game credits for Tom Clancy’s Rainbow Six Siege.
  • Use these credits in-game to purchase the newest Operators, uniforms, weapon skins, charms, and more!
  • R6 Credit code will be delivered via email from Amazon and redeemed in the Ubisoft Connect launcher

Do you need to repair Microsoft Visual C++?

Only repair or reinstall the Microsoft Visual C++ runtime when the error names a Microsoft runtime file such as MSVCP*.dll, VCRUNTIME*.dll, or api-ms-win-crt-*.dll. Those filenames are a different diagnosis. Installing a Visual C++ package is not a specific fix for an error that explicitly names ubiorbitapi_r2.dll.

If both messages appear, handle them separately: first restore the Ubisoft game or launcher component through verification or reinstallation, then follow Microsoft’s official runtime guidance for the separately named Visual C++ dependency.

Choose the repair path by source and scope

Situation First action Scope Relative risk
Ubisoft Connect installed the game Use the game’s Properties or Manage menu and run file verification or Repair Checks and restores the affected game files Low when completed through the official client
Steam installed the game Library → right-click game → Properties → Installed Files → Verify integrity of game files Checks the Steam library copy Low when completed through Steam
Verification cannot restore the file Reinstall the complete game from the same legitimate storefront Replaces the full matching game installation Usually more time and bandwidth, but safer than an isolated DLL
Launcher verification itself fails Reinstall Ubisoft Connect through its official installer or support route Replaces the launcher installation May require signing in and locating the game again
A security product quarantined the file Review quarantine, then restore or reinstall through the official source according to the security product’s guidance Addresses the removal event and the game files Do not use an unrelated download mirror
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Troubleshooting branches after verification

The game still shows the same message immediately

Confirm that you launched the same copy you repaired. Check the storefront’s displayed installation location and compare it with the shortcut or launcher entry you use. Then restart the launcher and Windows once more. If the message is unchanged, proceed to a complete reinstall rather than manually replacing the DLL.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Verification says everything is valid, but the file is absent

Do not override the result by downloading a file from elsewhere. Check whether security software removed it after verification and whether the game is actually managed by another storefront. If both checks are inconclusive, reinstall the game from its official library and document the exact error for Ubisoft support.

Best Value
Tom Clancy’s Rainbow Six Siege 7,560 R6 Credits | PC | Ubisoft Connect [Online Game Code]
  • 7,560 in-game credits for Tom Clancy’s Rainbow Six Siege.
  • Use these credits in-game to purchase the newest Operators, uniforms, weapon skins, charms, and more!
  • R6 Credit code will be delivered via email from Amazon and redeemed in the Ubisoft Connect launcher

The problem began after moving the game to another drive

Run verification after the move and confirm that the launcher’s recorded installation path matches the new location. If the client cannot repair the moved copy, reinstalling from the same storefront is the dependable next step.

Only one older Ubisoft title fails

Use that title’s own storefront entry for verification and provide the game name, exact message, and launcher version when contacting Ubisoft. An older game may require a title-specific support instruction that cannot be inferred from the DLL filename alone.

Several games fail with launcher errors

Verify one affected title first. If the Connect client cannot complete repairs across titles, reinstall Ubisoft Connect through the official route and then test a single game before changing multiple installations at once.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

When to contact Ubisoft support

Escalate after a clean verification and a complete reinstall fail, or when the launcher cannot identify the installation. Include:

  • the exact ubiorbitapi_r2.dll message, copied without paraphrasing;
  • the affected game and whether Ubisoft Connect or Steam installed it;
  • your Windows version and the launcher build, if shown in the client’s settings;
  • what you expected to happen and what actually happened;
  • the steps already tried, including verification, restart, reinstall, and any quarantine event;
  • the point at which the problem can be reproduced and any error code shown by the launcher.

This information lets support distinguish a missing game file from a launcher, account, or title-specific compatibility problem. Use Ubisoft’s official game-support route rather than a third-party DLL download site.

Quick recovery checklist

  • Confirm the filename is exactly ubiorbitapi_r2.dll.
  • Identify the storefront that owns the installed copy.
  • Run Ubisoft Connect verification, or Steam’s Installed Files verification for a Steam installation.
  • Restart the launcher and Windows, then test the game.
  • Review security-software quarantine for the same filename.
  • Reinstall the complete game, and reinstall Ubisoft Connect if its own repair process fails.
  • Use Visual C++ guidance only when the error names a Visual C++ runtime DLL.
  • Never use a standalone DLL mirror, a Windows system-folder copy, or generic regsvr32 commands.
  • Send Ubisoft the exact message and repair history if the official reinstall does not work.

As an optional shortcut after trying the manual steps, Outbyte PC Repair can address some common Windows issues, clean temporary and cache files, check selected Windows settings and missing updates, and provide an app-crash log; it complements antivirus software rather than replacing it, results vary, and no tool repairs every crash. It runs on Windows 11, 10, 8 and 7, with a free trial by category for at least two days before a paid subscription.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

DLL errorsSteamubiorbitapi_r2.dllUbisoft ConnectUbisoft gamesWindows troubleshooting

Leave a Reply

Your email address will not be published. Required fields are marked *

Free tools Windows power users keep installed

One-click scans. No signup required.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Recommended PC Tool
Recommended PC Tool
Windows Errors? Fix Them Before They SpreadFree repair scan
Outdated Drivers Are Slowing You DownFree scan - exact matches

Two free Windows tools

One Free Minute Could Fix That PC

Before you go - each of these free tools takes about a minute and tackles what quietly slows a Windows PC down.

Special offer. View Outbyte info, uninstall instructions, EULA, and Privacy Policy.