Windows Defender
Total score
Protection
Performance
Usability
Total score
Single values
Microsoft Products
Certified
Protection
Performance
Usability
October 2025
6
6
6
August 2025
6
6
5.5
June 2025
6
6
6
April 2025
6
6
6
February 2025
6
6
6
December 2024
6
6
6
October 2024
6
6
6
August 2024
5.5
6
6
June 2024
5.5
6
6
April 2024
6
6
6
February 2024
6
6
6
December 2023
6
6
6
October 2023
6
5.5
6
August 2023
5.5
6
6
June 2023
6
6
6
April 2023
6
6
5.5
February 2023
6
5
6
December 2022
6
5
6
October 2022
6
5
6
August 2022
5.5
4.5
6
June 2022
6
6
6
April 2022
5.5
6
6
February 2022
6
6
6
December 2021
6
6
6
October 2021
6
6
6
August 2021
6
5.5
6
June 2021
6
6
6
April 2021
6
6
6
February 2021
6
6
6
December 2020
6
6
6
October 2020
6
6
6
August 2020
6
6
6
June 2020
6
6
6
April 2020
5.5
5.5
6
February 2020
5.5
6
6
December 2019
6
5.5
6
October 2019
5.5
6
6
August 2019
6
5.5
6
June 2019
6
6
6
April 2019
6
5.5
6
February 2019
6
5.5
5.5
December 2018
6
5.5
5.5
October 2018
5.5
5.5
6
August 2018
6
5.5
6
June 2018
6
5.5
6
April 2018
5.5
5.5
5.5
February 2018
6
5.5
6
December 2017
6
5.5
4
October 2017
5
5
4
August 2017
5
4.5
4
June 2017
5.5
5
4.5
April 2017
4.5
4.5
6
February 2017
5.5
5
6
December 2016
4.5
4.5
6
October 2016
3
4.5
5.5
August 2016
3.5
5
5.5
June 2016
4
5.5
5.5
April 2016
3
5
5.5
February 2016
3
5
6
December 2015
4.5
5
6
October 2015
3.5
4.5
6
August 2015
3
5
6
June 2015
0.5
3
6
April 2015
0.5
5
6
February 2015
0
3.5
6
December 2014
0
5
6
October 2014
0
4.5
6
August 2014
0
4.5
6
June 2014
0.5
3
6
April 2014
0
5
6
February 2014
0
4
6
December 2013
0
5
6
October 2013
0
4
6
August 2013
0.5
5
6
June 2013
0
3.5
6
April 2013
1
4.5
6
February 2013
2
3.5
6