What are wct8121.tmp Error Messages?

General wct8121.tmp Runtime Errors

wct8121.tmp file errors often occur during the startup phase of Sumatra PDF, but can also occur while the program is running. These types TMP errors are also known as “runtime errors” because they occur while Sumatra PDF is running. Here are some of the most common wct8121.tmp runtime errors:

• wct8121.tmp could not be found.
• wct8121.tmp error.
• wct8121.tmp failed to load.
• Error loading wct8121.tmp.
• Failed to register wct8121.tmp / Cannot register wct8121.tmp.
• Runtime Error - wct8121.tmp.
• The file wct8121.tmp is missing or corrupt.

Most TMP errors are due to missing or corrupt files. Your wct8121.tmp file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Sumatra PDF), or deleted by a malware infection. Furthermore, wct8121.tmp file corruption could be caused from a power outage when loading Sumatra PDF, system crash while loading or saving wct8121.tmp, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix wct8121.tmp Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your wct8121.tmp issue. These troubleshooting steps are listed in the recommended order of execution.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. When you see the search box, type "System Restore" and press "ENTER".
3. In the search results, find and click System Restore.
4. Please enter the administrator password (if applicable / prompted).
5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
6. Restore your computer to that backup image.

If the Step 1 fails to resolve the wct8121.tmp error, please proceed to the Step 2 below.

You can uninstall Sumatra PDF software by following these instructions (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. In the search box, type "Uninstall" and press "ENTER".
3. In the search results, find and click "Add or Remove Programs"
4. Find the entry for Sumatra PDF 3.1.2 and click "Uninstall"
5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Sumatra PDF software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Sumatra PDF 3.1.2

Open Source

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many wct8121.tmp error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

1. Hit the Windows Start button
2. In the search box, type "Update" and press "ENTER".
3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
4. If updates are available for download, click "Install Updates".
5. After the update is completed, restart your PC.

If Windows Update failed to resolve the wct8121.tmp error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your wct8121.tmp File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate wct8121.tmp file version. We maintain a comprehensive database of 100% malware-free wct8121.tmp files for every applicable version of Sumatra PDF. Please follow the steps below to download and properly replace you file:

1. Locate your Windows operating system version in the list of below "Download wct8121.tmp Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate Sumatra PDF folder location:
   
   Windows 10: C:\Users\Tester\AppData\Local\Temp\
   Windows 10: C:\Users\Tester\AppData\Local\Temp\
   
4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

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