yes can anyone help me i am having booting problems i have windows xp. it all started when i kept down loading soft ware to try i think i need a good registry cleaner anyone know of one that works like they claim be for i buy it thank you group

I am starting a Tech Support business and was wondering if anyone knew soft ware I could use to test and hardware and other things either from software built into windows (vista or xp) or third party soft ware (cheap or free). Or if anyone else does this what do you use?