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Fix: Dcomp.dll is Missing, Not Authorized to Run, or Faulting Mode
Manually moving a copy of the DLL is the easiest fix
4 min. read
Updated onNovember 7, 2024
updated onNovember 7, 2024
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For fixing DLL errors, we recommend Fortect:
Fortect will search for an intitial version of your missing, corrupted or damaged DLL files that cause problems to your Windows OS and will replace it. Here is how to find them in 3 easy steps:
Thedcomp.dllfile, developed by Microsoft and a part of theDirectCompositionAPI, has been included in the OS since Windows 8 and can be found on Windows 11. But when the DLL is corrupt or missing, programs that rely on it start to crash, including Office apps likeMicrosoft Exceland several games.
Also, in some cases, the error message reads,C:\Windows\System32\dcomp.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support.
Before you proceed, reboot the PC and install any pending Windows. For most of you, this should fix thedcomp.dllmissing error!
How can I fix the dcomp.dll error?
1. Manually move dcomp.dll
Whendcomp.dllis not designed to run on Windows or is missing, your primary approach should be to manually move a fresh copy of the DLL. Thedcomp.dllfile is stored in:C:\Windows\System32
So, all you have to do is go to another PC running the same Windows iteration and architecture(32-bit or 64-bit)> locate the DLL > transfer a copy of it to a USB flash drive > connect the flash drive to the affected PC > movedcomp.dllto theSystem32folder > reboot the PC.
Once done, programs should no longer throw the missing DLL error!
2. Run the program as an administrator
Running as an administrator especially helps when Microsoft Office apps like Excel, Word, or Outlook keep crashing or restarting due todcomp.dll.
In that case, search for the affected application > right-click on the result > selectOpen File Location> right-click on the shortcut > selectProperties> go to theShortcuttab > click onAdvanced> tick the checkbox forRun as administrator> save the changes.
3. Repair the corrupted system files
Corrupted system filesare just as likely to cause missing DLL errors. And sincedcomp.dllis a protected system file, running theDISM(Deployment Image Servicing and Management)and SFC(System File Checker)scans will replace it with a cached copy stored on the PC.
4. Perform a malware scan
5. Reinstall the affected app
6. Perform an in-place upgrade
An in-place upgrade will, in all likelihood, fix the missingdcomp.dllerror in Windows 11 without affecting the files and apps. If this, too, fails, you can alwaysreinstall Windowsto get things running.
Before you leave, discover expert tips tofix all missing DLLsand resolve such issues with ease! Also, don’t miss our newest guide to learnwhat is hvsigpext.dll.
For any queries or to share more fixes with our readers, drop a comment below.
More about the topics:DLL errors,DLL issues
Kazim Ali Alvi
Windows Hardware Expert
Kazim has always been fond of technology, be it scrolling through the settings on his iPhone, Android device, or Windows PC. He’s specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
Long-time Windows user, Kazim is ready to provide a solution for your every software & hardware error on Windows 11, Windows 10 and any previous iteration. He’s also one of our experts in Networking & Security.
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Kazim Ali Alvi
Windows Hardware Expert
Kazim is specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
