I have an issue whereby a user faced an error while opening any PDF files from Windows 10 machine version 20H2 (x64).
RdrCEF.exe - Bad Image
C:\Windows\System32\credui.dll is either not designed to run on Windows or it contains an error.
Error status 0xc0000022
Version: Adobe Acrobat Reader 2022.003.20258
Please kindly provide the troubleshooting steps to fix this issue
Thank you for reaching out.
Try the troubleshooting steps suggested in the following help document: https://helpx.adobe.com/acrobat/kb/acrocef-rdrcef-errors.html.
If that does not help, try reinstalling the application. Remove the application and run the cleaner tool (https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/cleaner.html).
Reboot the machine and reinstall Acrobat Reader from the following help page: https://get.adobe.com/reader/enterprise/.
Let us know how it goes.