Windows 10 Anniversary and subsequent updates have been installed on my two laptops. Both laptops are booting very slow, takes 10-15 minutes before laptops can be used in a normal way. 100% HDD activity during the boot process. Tried Defraggler if this would help to speed up boot process. Defraggler not used for some time and installed latest version 2.21.993. HDD 320GB installed in both laptops. Defraggler running on both laptops for two full days, day and night. Little or no progress, 5-7% completed. Speed of reading files avg 15 sec per one file.
Useless program.
Using std Windows Defrag program, and performs well.