My acer aspire wont boot to windows after i installed new windows

[pimpcorey]

Hello, My acer aspire 5720z wont boot to windows after i installed new windows
can you tell me how to fix this with out spending any money as i dont have any !

 

[mhelm1]

Need to know more, boot and load windows are seperate operations. where exactly does the computer hang?
If this was and upgrade, then
Start up in safe mode and install drivers from:
http://us.acer.com/acer/service.do?LanguageISOCtxParam=en&miu10einu24.current.attN2B2F2EEF=3750&sp=page15e&ctx2.c2att1=25&miu10ekcond13.attN2B2F2EEF=3750&CountryISOCtxParam=US&ctx1g.c2att92=453&ctx1.att21k=1&CRC=2054404012
Make sure you correctly enter the operating system.