Avast Black Screen Problem – windows 8| solved. (My past experience). The only reason I’m using avast is because its free and also I could get a paid version for free. Want to know more? I have same problem with windows 8 and Avast, but when I try to open Task Manager, it shows up for a split second and then disappear again. Internet connection and Wi-Fi problems are the most annoying issues anyone could face while using a new operating system. Some users have reported that webpages, including downloads, load very slowly after upgrading to macOS Sierra.

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Hi,

1.Do you receive any error message?

2.Have you made any changes to the computer prior to this issue?

There is a possibility that some third party programs installed on the computer is causing the issue.

Method 1:

Step 1:

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You may try to boot the computer in safe mode. Refer the following link.

Start your computer in safe mode

Step 2:

If this issue doesn’t occur in safe mode then you may perform a clean boot. Refer the following article.

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How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7

NOTE: Once you are done with clean boot, please follow step 7 in the article to set your computer back to normal startup.

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Method 2:

You may try to perform SFC (System File Checker) scan on your computer and check. Refer the following article.

How to use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7

Method 3:

I would also suggest you to scan your computer with Microsoft Safety Scanner, which would help us to get rid of viruses, spyware, and other malicious software.
The Microsoft Safety Scanner is a free downloadable security tool that provides on-demand scanning and helps remove viruses, spyware, and other malicious software. It works with your existing antivirus software.
http://www.microsoft.com/security/scanner/en-us/default.aspx

Note: The Microsoft Safety Scanner expires 10 days after being downloaded. To rerun a scan with the latest anti-malware definitions, download and run the Microsoft Safety Scanner again.
Note: Any data that are infected may only be cleaned by deleting the entire data, which means there is a potential for data loss.

Hope it helps.

by Martin Brinkmann on October 31, 2014 in Security - Last Update: October 31, 2014 - 33 comments

Security companies such as AVG, Kaspersky or Avast release new versions of their products each year to the public. The updates do introduce new features from time to time and may also change the interface of the program as well.

Avast released its 2015 lineup recently and one of the new features that all of its antivirus programs ship with is HTTPS Scanning.

It enables the program to detect and decrypt protected traffic using its web filtering component. This alone is highly problematic considering that the program is tapping right into protected data streams but the current implementation is causing all kinds of issues on top of that.

Update: An update to the most recent version of Avast or Firefox seems to resolve the issue.

Firefox users for example may notice that the browser won't close anymore because of Avast's HTTPS Scanning feature. This may not happen all the time when Firefox is closed but users reported that it is happening frequently.

That's however not the only issue that Firefox users may experience if Avast is installed on the computer system the browser is running on.

Firefox's add-on update check may be blocked by the security software as well.

The Mozilla Firefox web browser is not the only program that is affected by issues though. Spotify's Web Player may not be able to connect to Spotify for example with Avast 2015 running on the system.

Users who experience issues after installing the latest version of Avast 2015 have two options:

Disable HTTPS Scanning.
Uninstall Avast completely.

It is thankfully pretty easy to disable HTTPS Scanning in the application.

Open the Avast dashboard on the affected system.
Select Settings from the left sidebar menu.
Switch to Active Protection.
Click on Customize next to Web Shield.
Uncheck the 'Enable HTTPS Scanning' option and click ok.

This turns off the feature in Avast and problems that you have experienced should be a thing of the past.

There is no option to turn off the HTTPS Scanning feature in Avast during installation. While you can disable the Web Shield during installation, it impacts more than just HTTPS scanning and is generally not recommended. (thanks Sören)

Avast's HTTPS Scanning interferes with Firefox and other programs

Description

The new HTTPS Scanning feature of Avast 2015's Web Shield interferes with programs such as Firefox or Spotify. Find out how to resolve the issues.

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