Vista - network identifing problem

hi please help me i got my computer back in november 2008 and the problem i hav is identifiying a net work.

both my nabours have got wireless routers and the same make one is unsucured and the other is sucured i have permission off both nabours to use there networks.

my problem is identifing the sucured network both have the same make routers but if i try to connect to the sucured router out of about 20 trys i only get in 2 however i hav found a way around this i must first connect to the unsucured network once im in its ok then if i come out but leave com on then if i go into my room it gos into the sucured network fine infact instantly but if i turn my com off or even restart it i cant get back into it with out going into the other unsucured network first and if i restart my com some times my com dus not even pic up the wireless and when i go into the wireless functios i dont hav wireless when i do to get round this i had to trurn my com off and then switch back on and sometimes my wireless plays up wer it will just disconnect from the network on its own and also my fuctions buttons on my laptop failed to work last nite i had to restart my laptop. my brother came over with his laptop and was able to get into both networks with out a problem and both networks both have the same defalt gateway. ive had this problem now for free months but im upset for the fact that it is having this wireless problem its only now that my computer has stopped crashing alot too i just dont get what the problem is with my wireless and its identifing problem. i should be able to shut down my laptop and switch it on whenever and go into the networks with out a problem but i hav that problem can you help me and also is my problem to do with meging internet connections . thanks so much for reading this essay and if possible can you reply.

thanks so much david

Try upgrading the wireless card drivers.
Another issue my be corruption of Windows If you are having crashing issues.

Go to Windows update and check for updates.

Also I suggest you scan for malware/Windows issues:

Avira Antivir (downloadable free software)
Avira is one of the best Antivirus vendors on the market. ((AV-comparative 2008)

or
Avast! (Alwil) (downloadable free software)
Free Home Edition antimalware progam.
------------------------------------------------------------------------------------------
then run...

Malwarebytes
This is a On demand Scanner only (real time detection mode disabled in free version)
This is a specialized tool specifically targeted at polymorphic Malware, and as such is not very effective against other malware threats. It is also meant to be run in conjuction with installed Antivirus- not as a standalone app.

SysInspector
ESET SysInspector is a free, state of the art diagnostic tool for Windows systems.
It peers into your operating system and captures details such as running processes, registry content, startup items and network connections. Once a snapshot of the system is made, ESET SysInspector applies heuristics to assign a risk level for each object logged. Its intuitive graphical user interface enables the user to easily slice through the large volume of data using a slider to select objects of a particular color coded risk level for closer examination. ESET SysInspector is a convenient utility for the tool box of every IT expert and first responder.

then scan here:

run sfc /scannow
System Files - SFC Command


Check for file system errors/bad sectors
How To Make Vista more responsive and faster

ive tried scanning with macafee and i get nothink its fine but i just dont understand this problem also can u add me on msn Removed and tlk on there to help me or even ring me on Removed or 0151 Removed because im so lost ere i dont no how 2 sort the wireless side of things out after reading what u sed can u tell me wot malware is i dont understand thanks david

unless mcafee has Artemis it sucks- and offers subpar protection. Scan with the programs I listed. Including Malwarebytes, and the diagnostic scans through windows.

Vista SP1 Antivirus Performance

can you tell me where i can get these programs from or are they already on my com i just dont get it lol lol still getting use to coms lol lol

The blue lettering is the link URL-double click it and download the program. Install it and run it.

thanks boss i will get rite onto it now thanks bud

ive just downloaded mal bites its found a tun of errors can u tell me how i can fix the wlan step by step brother imlost ere also if i can have ye number ill ring u rite now if u r in the uk im just so lost i need help lol lol thanks brother david

errors or malware? I suggest you uninstall mcafee and install Avast! or Avira and do a system scan.

You need to edit your post and remove your numbers/email addy. for your own protection.

Download the FREE registry cleaner Demo! ive just downloaded this and its found a tun of errors in me registory files i mean alot lol lol