may 2 windwo use kar raha how win xp or win 7

kise waja mera lan card jo k del GX280 D945 syestem may bultin hey win xp may to show hi nahee ho raha device manager may show hota but view network connection or network place main nahee hota na hi two jis kee waja say task bar may net k monitor bhee show nahee ho rahey
window 7 may show hota hey but mointor per cross ka nishan aa raha hey cabel wagera sub check ker lee but nahee horaha

fir may nay dosra lan card fix kia jus say winxp say to net chal raha hey but

win 7 may wo positon hey phelae lac card per red cross arha hey meger dosra lan card jo fix kia ho to show hee nahee hora kaheen bhee

pls help all experts