Replacement for 360 total security

am.. with 360, bitdefendr and avira definitions for stand alone is possible.

There has been a lot of controversy surrounding Qihoo to include it's reporting other anti-virus software and search tools as being malicious, deceptive marketing practices and various privacy issues.

AV Comparatives, AV TEST and Virus Bulletin make allegations of inappropriate behavior by Qihoo 360

Quote

"...three of the worlds most renowned and trusted security testing bodies, AV Comparatives, AV? TEST and Virus Bulletin, stand united tocensure security vendor Qihoo 360 after finding the firm submitted products for comparative and certification testing which behaved significantly differently from those made available to its users and customers. The three testing bodies will revoke all certifications and rankings awarded to the companys products so far this year, and going forward will insist on more open and fair dealings to ensure users are provided with the most accurate information possible. Investigations by the three labs found that all products submitted for testing by Qihoo had one of the products four available engines, provided by Bitdefender, enabled by default, while a second, Qihoos own QVM engine, was never enabled. This included versions posted to ostensibly public sections of the companys websites."

More information in these articles:

• Qihoo 360 Accused Of Faking A Microsoft Patch
• Privacy Issues With China's Qihoo 360 Technology
• Online security firm accused of stealing user info
• The 1 Company You Need to Avoid in 2013
• Qihoo's "Backdoor" Suspicions Erupt In User Backlash
• The 360 Safe Browser is not as “safe” as you might think

As already noted...using more than one anti-virus program is not advisable. Even if one of them is disabled for use as a stand-alone on demand scanner, it can still affect the other and cause conflicts. Anti-virus software components insert themselves deep into the operating systems core where they install kernel mode drivers that load at boot-up regardless of whether real-time protection is enabled or not. Thus, using multiple anti-virus solutions can result in kernel mode conflicts causing system instability, catastrophic crashes, slow performance and waste vital system resources.

For a more specific explanation, read the IMPORTANT NOTE about not using more than one anti-virus program in this topic.

as Cyber_team suggested:  Only use One antivirus software.  Only renew 1, Remove the rest.  His suggestion of Microsoft Security Essentials is a good one, too.

***Pre-installed or user previously installed antivirus may inhibit the current antivirus, use the mfg removal tools to completely remove them, if they were every on your system.***

Use the mfg removal tools to completely remove them, after running the uninstall in Programs and features see:

https://service.mcafee.com/FAQDocument.aspx?id=TS101331

(MCPR is 1/2 way down the page)

or

Norton Removal tool at:

https://support.norton.com/sp/en/us/home/current/solutions/kb20080710133834EN_EndUserProfile_en_us

For AVG removal see:

http://www.avg.com/us-en/utilities

in addition to the removal tool for your version of AVG.

Use the 'AVG Identity Protection Remover'

List of anti-malware product removal tools

http://answers.microsoft.com/en-us/protect/wiki/mse-protect_start/list-of-anti-malware-product-removal-tools/2bcb53f7-7ab4-4ef9-ab3a-6aebfa322f75

If you are really infected, i suggest some additional tools from bleepingcomputer :  http://www.bleepingcomputer.com/download/adwcleaner/ (the other two (2) suggested tools are on the bottom of the page), like rkill (1), jrt (2), and adwcleaner (3) (run all of them, in that sequence)(i put them on the desktop, and run them from there)(as administrator (right click)).  Uninstall adwcleaner, after running it and the system has rebooted, by opening the program, and choosing the uninstall button, or its quarantined files may set off your antivirus. The other tools from bleepingcomputer can be safely deleted, after running them; they are updated often, so the old versions are not necessary. After running the tools, if they found anything, you need to reset your browsers to default, then check for any unfamiliar plugin/addins within the browser. then run malwarebytes  again.

in a lot of instances,  you have to remove the malicious activity one layer at a time, so you may not want to delete the tools after the first run.

Run Malwarebytes (Free):

https://www.malwarebytes.org/mwb-download/

uncheck the box at the end of the install for trial, or convert to free at the end of the trial.

Malwarebyes is a good addition to your antivirus software. Make sure in Malwarebytes the 'Scan for rootkits' box is checked-> Settings-Detection and Protection.  Free means manual, so, you have to open it, and run it occasionally.

Try HerdProtect (free),  http://www.herdprotect.com/  ,be watchful of false positives, only remove unchecked items at the end (by putting a check in the box), if they reside in a temp type folder or you are sure about them, remember to run it again in a few hrs(per mfg instructions).  I generally uninstall HerdProtect after a few weeks, as it's cache gets large fast.

Manually check for Windows Updates.

For additional protection from ransomware see:

https://www.foolishit.com/cryptoprevent-malware-prevention/

use free version only-

First of all, you should only use one Anti-Malware product. You should NOT use Bitdefender and Avira Together and you should only use one and remove the other.

You could use Microsoft Security Essentials which is free:

http://windows.microsoft.com/en-US/windows/security-essentials-download

But before install it ,make sure you uninstalled other Anti-Malware products.