系统优化问题

唔知大家有冇用iobit 的advanced systemcare 7.1or7.2 for Free呢？ 我部手提电脑win8 和win8.1 用呢个软件有一个问题。就系一键检查后，例如（登录档分散）问题以解决，需要重启，但一重启后，电脑就开始开机检查
IObit registry defrag
note: you can pass Esc key to exit at any time
Initializing keybord and regisry... Done
C:/users/user appdata/local/microsoft/windows/userclass.dat is being defragged...
.......
最后一句系
Please wait while the system is restarting....
一个钟之后部电脑都冇反应，要强制关机。
有冇知咩事？会唔会系win8有 bug ?定系个软件有bug ?

自己慢慢睇有冇相关资料：

http://www.iobit.com/faq.php