[KB2936] Why is the Computer scan hanging?


  • The Computer scan hangs (slows down) for an extended period of time

macOS users.


  • The processing of certain temp files, certain compressed files and other proprietary files can cause the scan to hang.
  • This solution will ensure that only files that could contain actual malicious code are scanned.
  • Large log files, various temporary files and other proprietary program files will be excluded from scanning to decrease the chances of a failed On-demand scan.


Delete temporary internet files

Slow scan times can be a symptom of uncleared temporary internet files. For instructions to clear the temporary internet files on your computer, see the following Microsoft Knowledgebase article:

To isolate the file that is causing the scanner to hang, follow the steps below:

  1. Open the main program window of your Windows ESET product.

  2. Press the F5 key to open Advanced setup. Click Antivirus → On-demand computer scan and expand Threatsense Parameters

Figure 1-1

  1. Scroll down to Other. Click the slider bar next to Log all objects and click OK to save your changes.

    Figure 1-2

  2. Click Computer scan → Custom scan.

Figure 1-3

  1. Click the gear icon . Select Local drives from the Scan targets drop-down menu and In-depth scan from the Scan profile drop-down menu.

Figure 1-4

  1. Click Scan. If the Computer scan still hangs for an extended period of time, export your scan log and submit it to ESET Technical Support for analysis.