Your use of the word "formatted" here is confusing.
I always advise people seeking technical help to avoid technical jargon and to explain things in ordinary language, to avoid confusion. This makes it easier for the technician to understand you and harder for him/her to misunderstand you.
I even recommend, for the sake of clarity, that technicians also avoid jargon as much as possible and where unavoidable, to explain things as they go along, which is what I try to do.
What I can assume is that your laptop had a a different windows operating system such as Windows Vista or Windows XP and you decided to upgrade this to Windows 7.
The alternative is that, the laptop already had Windows 7 installed and that there was some problem that led to your trying to repair the fault by reinstalling the Windows 7.
In either case, what seems to have happened is that you have ended up with a fresh installation of Windows 7 Operating System but the devices you list are not working because the relevant device drivers that integrate each device into the operating system are missing corrupted or in conflict with other installed drivers or versions of drivers.
Windows 7 has many drivers built-into it, but some of those for your model may be missing.
These sites should help you to find and download the relevant device drivers.http://www.haier.net/servicesupport/manualSearch.asphttp://www.giveawayoftheday.com/driver+haier+e4a/Start>Computer>System properties>Device Manager
will show you the status of the drivers installed on the computer. Any individual devices popped out to the right from the list of devices and/or with yellow exclamation marks or question marks may indicate corruptions, conflicts or absences of the related drivers. Right click on each device and follow the Update Driver option on each. If the devices are all in a neat straight line on the left of the Device Manager window, then go straight ahead and reinstall the drivers for each non-functioning device.
To avoid similar problems in future, I suggest you download all the drivers relevant to your model and then save a copy of the full set of these drivers onto an external device such as a memory stick or an external hard drive.
An even more comprehensive disaster recovery option is, before undertaking any major changes, to explore the option in some Anti Virus programs to create a custom made, bootable recovery disc that would help you restore your files and settings in the event of serious system failure. This gives you the option, in the event of problems, to restore your computer to the state that existed before your attempted change or repair.
Hope this helps.