ActiveSync cannot synchronize resolution records

Today, I encountered a small problem, which is a headache. When the simulator is used to connect to ActiveSync," Key communication service startup failed ", Which cannot be solved. After Google, I found many Article Write as follows:
1. Set the Default Input Method Back to the simplified Chinese-American keyboard. Or Ziguang may not conflict with the input method.
2. Firewall:
Allow the following Program
Wcesmgr.exe
Wcescomm.exe
Rapimgr.exe
Open the following port
Inbound TCP: 990 999 5678 5721
3. reinstall ActiveSync
4. Create a user
There are many factors that may cause this problem, but they are nothing more than three fundamental problems: registry key value, link library file change, or underlying protocol hijacking.
Generally, the software changes are not great, and the firewall port problem cannot be solved today without tomorrow. Therefore, '2' is more like an unreasonable inference and will not be considered.
After a number of friends solve the problem, '4. Creating a New user' is the only solution that can be comprehensively solved. The reason why the title is "revised" is that this solution will affect usage habits if it is not revised. Do we have to switch between accounts? Or should I migrate so many files, configurations, and software from my previous account?
After using the '4. Create a user' scheme, we further verify that after switching back to the original account, activating ActiveSync will have a wizard for resetting. After resetting, everything will work normally.
But TM cannot.
Then I solved it like this. 1. Uninstall the sougou input method first. 2. reinstall the AC. 3. Install the Google input method. Solve the problem. Record it here.
Refer:
ActiveSync "failed to start critical communication services" solution (revised)
Key communication service startup failed _ Baidu Knows
Solution to "failure to start key communication services" in PPC-reach S1-Alibaba Cloud mobile Forum | Dopod mobile Forum-mobile China