My OS is Windows XP PRO SP3. I can't remember what softwares I have deleted as my pc is down with no recognition of hard disks by BIOS and don't know what's wrong with it. The one I am now using is taken from my niece and she was using ipods, ipads, mobiles, audio sets etc. which I seldom use.
Can I use Registry Cleaner? As comments by most users, better not to try it as it may ruin your registry records and files which I do not know. I have just installed Wise Care 365 and pend for any better advice or solution before use.