10-4 to Abraxas
I have never had a problem with it.
More problems come from people manually tinkering with the registry.
Paul the registry is like a master index or the nervous system of windows.
It tells windows how things work, where things are, and many other things.
The problems bad entries can cause range from the registry just being so large (full of bad entries maybe but not necessarily) which slows access.
The registry uses serial access meaning to get an entry, windows has to read from the beginning to the point of retrieval. So if t does not find it, it reads completely thru the registry. Since the registry can be many Megs in size, it needs to be cleaned and compacted. The registry is read intensively at windows start. And it generally is read on almost all program starts.
Bad registry entries can cause problems when a bad entry points to nothing or and erroneous value thus slowing down or giving errors or lockups.
Every registry entry must have a beginning and end. If the start or end is missing it is a bad entry.
a program is uninstalled but the reg entry is still there points correctly to something say like a video controller or HD
or anything. Has no beginning.
a modem or some hardware is removed (as opposed to a program like above) now we have the reverse, a beginning but no end.
Also when things are removed in almost all cases there is a blank spot where they came out. Relates to you removing an entire paragraph in a document but not closing up the space between.
The registry may be clean of bad entries but has dead space. This space is handled when the registry is optimized (also called compacting) by scanreg or other means.
The registry can be cleaned of dead links and be optimized/compacted and still have logical errors. registry cleaners can not get these.
In short here is what a registry cleaner does.
entries that have no beginning and removes
entries that have no end point and remove
What they do not do:
Fix entries that have begin and end but invalid or erroneous values.
Yeah I know I wax prolific. Can't help it! I know you don't have all day to read about the registry. And I don't really have all day to write either but I want to be clear. If you want to learn I want to teach.