Windows 7 recovery and MBA fixing

I am unlucky! My laptop's hard driver is damaged when I tried to re-run assessment in my windows 7 and cancel it after I heard terrible strange noise coming out from my laptop. Probably, the hard drive has not been physically damaged. However, I can not read the data from this seagate 2.5" driver after i put it in an external USB or eSATA enclosure.

Anyway, I replaced a new 2.5" hard driver for my laptop. Before I restore Windows 7 system to the laptop, I installed Fedora on it to see if its motherboard has no problem. However, after doing this, Windows restore DVD (created by Gateway backup) can not recognize the right size of new hard driver. It always shows 0 size. Then, I do the following steps to restore the Windows 7,

1) put the hard driver into a external closure and connect to another Visa machine.

2) Using the Disk Management tool from Computer Management to format the new hard driver.

3) Put back the new hard driver and restore Windows 7 on the laptop.

4) However, the system can not been boot up yet. I have to continue work.

5) download and make a Windows 7 64 bit Recovery CD and run the below command to fix the MBA. Particularly, I have to add option "f" to successfully reset MBA.

bootsect.exe /nt60} C: /force] /mbr 

Recover firewall installation on Windows 7 Home Premimum 64bit

Because of some reasons, my laptop's Windows 7 Home Preminum firewall and DHCP client service can not be started with "error 5: access is denied" message. After search, I find many persons have similar problems have to reinstall whole window system. It is really frustrated that I have to reinstall my windows and reconfigure all applications. After searching and try, I finally successfully recovered my Windows 7 system. Here are steps I follow,

1) Open a Command Prompt as administrator and run the following command to check which service failure.

a. netsh advfirewall reset
b. net start mpsdrv
c. net start bfe
d. net start mpssvc
e. regsvr32 firewallapi.dll

2) Following the instruction from Microsoft to solve the access denied error one by one.

http://support.microsoft.com/kb/943996/en-us

3) Running follow command to fix DHCP client service if DHCP still can not start.

net localgroup administrators localservice /add
net localgroup administrators networkservice /add

4) Open windows event viewer check system log and make sure there is nor error message there.

I guess I got this problem because I shutdown my laptop during the process of uninstall citrix VPN client for windows 7 64bit.