Question
Issue: How to fix RdrCEF.exe high CPU usage in Windows?
Hello. I recently noticed that my Windows computer started being slower than usual. I found that a process named RdrCEF.exe is using a lot of CPU power. What is it?
Solved Answer
Windows is a wonderful operating system but for some reason, some of the applications, and services can malfunction, and start using high amounts of CPU[1] power. This can result in bugs, glitches, and a significant decrease in performance. If a device is constantly using significant amounts of CPU power, it can even cause overheating issues.
Recently, some users have been having problems with RdrCEF.exe high CPU usage in Windows. RdrCEF.exe is a standard component of Adobe Acrobat Reader which is a free standard for viewing, printing, signing, sharing and annotating PDFs. It is the only PDF viewer that can open and interact with all types of PDF content, including forms and multimedia.
RdrCEF.exe is also associated with “stopped working” and “application error” pop-ups. Most of the time, errors appear when users try to open Acrobat Reader. It is unknown why exactly RdrCEF.exe starts randomly using a high amount of CPU or/and RAM but in this guide, you will find 3 steps that could help you fix it.
You can also use a maintenance tool like FortectMac Washing Machine X9 to fix various system errors, BSODs,[2] corrupted files, and registry[3] issues. This powerful software can also clear up cookies and cache, often the culprits behind many malfunctions. If you want to begin the guide that could fix RdrCEF.exe high CPU usage in Windows, make sure to follow the instructions below carefully.
Method 1. Rename RdrCEF.exe and RdlServicesUpdater.exe
- Navigate to the location of Acrobat Reader (by default, the folder is located in C:\ Program Files (x86) \ Adobe \ Acrobat Reader DC \ Reader \ AcroCEF)
- Here you should see RdrCEF.exe and RdlServicesUpdater.exe
- Right-click on each of them and select Rename
- Rename both executables to end with _old and hit Enter to save the changes
- Restart Adobe Reader in order to force it to recreate the two files
Method 2. Update Acrobat Reader
- Open Acrobat Reader, go to Help, and click on Check for Updates
- The Adobe Acrobat Reader will check for updates
- If there are any updates, follow the prompts to install them
Method 3. Reinstall Acrobat Reader
If you receive an error and cannot open Acrobat Reader, uninstall it from your computer first.
- Press the Windows key + R to open the Run box
- Type appwiz.cpl and press Enter
- In Programs and Features, find Adobe Acrobat Reader, right-click on it and choose Uninstall
- Visit the official download center for Acrobat reader and download the latest version
- Follow the on-screen instructions to install Adobe Acrobat Reader on your system
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Recover your lost files quickly
Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost. To recover lost files, you can use Data Recovery Pro – it searches through copies of files that are still available on your hard drive and retrieves them quickly.
Ugnius Kiguolis is the founder and editor-in-chief of UGetFix. He is a professional security specialist and malware analyst who has been working in IT industry for over 20 years.
- ^ Jon Martindale. What is a CPU?. Digitaltrends. Computing Blog.
- ^ Chris Hoffman. Everything You Need To Know About the Blue Screen of Death. Wikipedia, the free encyclopedia.
- ^ Tim Fisher. What Is the Windows Registry?. Lifewire. Software and Apps.
