No wifi after formatting laptop computer

Hello
I have a hp pavilion laptop 450 with windows 7 ultimate 32-bit os. I used the windows 7 Professional 32-bit operating system, but I had to format it as my was getting hung up quite often. After formatting, its response time has decreased and it looks fresh, but the only problem is, I can't seem to connect to any wireless network. There is this large red cross on the network and sharing Center and after a repair I get the message "a network cable is not correctly plugged in or it can be broken."
I tried to install it two adapters wifi different, but to no avail. They are
1 Ralink 802.11 wifi adapter
2 Broadcom wireless lan driver for microsoft 7.
Could is anyone here suggest what went wrong and how to fix this?

Hello:

Here are links to the drivers you need:

http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/swdDetails/?sp4ts.oid=5225001&spf_p.tpst=swdMain&spf_p.prp_swdMain=wsrp-navigationalState%3Didx%253D%257CswItem%253Dob_123851_1%257CswEnvOID%253D4053%257CitemLocale%253D%257CswLang%253D%257Cmode%253D%257Caction%253DdriverDocument&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken

http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/swdDetails/?sp4ts.oid=5225001&spf_p.tpst=swdMain&spf_p.prp_swdMain=wsrp-navigationalState%3Didx%253D%257CswItem%253Dob_104495_1%257CswEnvOID%253D4053%257CitemLocale%253D%257CswLang%253D%257Cmode%253D%257Caction%253DdriverDocument&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken

http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/swdDetails/?sp4ts.oid=5225001&spf_p.tpst=swdMain&spf_p.prp_swdMain=wsrp-navigationalState%3Didx%253D%257CswItem%253Dob_127099_1%257CswEnvOID%253D4053%257CitemLocale%253D%257CswLang%253D%257Cmode%253D%257Caction%253DdriverDocument&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken

Tags: HP Desktops

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