When comparing Tencent PC manager vs Microsoft Security Essentials, the Slant community recommends Microsoft Security Essentials for most people. In the question“What are the best free anti-viruses for Windows?” Microsoft Security Essentials is ranked 4th while Tencent PC manager is ranked 12th. The most important reason people chose Microsoft Security Essentials is:
MSE doesn't seem too resource intensive
Ranked in these QuestionsQuestion Ranking
Pros
Pro Performance
MSE doesn't seem too resource intensive
Pro Simple and Silent
Does the job without distracting you.
Pro Less prone to false positives compared to other solutions
Frequent false positives in themselves can reduce security
Pro Ease of Use
Pro Accuracy
Cons
Con Depends upon Bitdefender engine for scanning local files
If you notice its UI, you will find that it uses Bitdefender engine for scanning local files. Sounds like Tencent is nothing but just a clone of Bitdefender.
Con Slow scanning
It takes too much time to scan full computer.
Con Used as non-competitive baseline since 2013
All except one tested antivirus scores above Security Essentials.