Is registry cleaner best to speedup my windows ?

Hello,

My computer has been working slow lately & getting errors from last month.

Friends recommended me to use registry cleaner to speed up my Windows.

They also told me that registry cleaner is capable to remove redundant or

unwanted items from the Windows registry.

Is registry cleaner  best to speedup my windows ?

I suggest you try both Disk Cleaner and Registry Cleaner. (Run Disk Cleaner first.)