The “Windows Installer service could not be accessed” error message shows
up. This problem started once I downloaded a registry cleaner. Now I’m not an
able to use an Adobe file or download it.
In this excerpt from Answercast #88 I look at a problem on a computer after running a registry cleaner.
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I’m not as convinced as you are that registry cleaners aren’t useful. But the only one I would use on a client’s computer (or mine) is CCleaner. And CCleaner *always* asks if you want to backup the registry before cleaning, which can allow you to fix a problem like this.
That said, I have used CCleaner probably hundreds of times without problems.
Before going through the exercise of restoring his PC using a full system backup image, the poster may want to first try using System Restore to revert his PC to a point in time before he used the registry cleaner. System Restore may provide a quick and easy solution here.
Well there wasn’t a problem with the registry in the first place so why risk it anyway. Using buzzwords such as ‘Fix’, ‘Repair’, ‘Critical Errors’ and so on, they mean nothing – still a program which is designed to remove an entry. Regular usage of registry cleaning can fragmented the registry. Orphaned registry entries are harmless and doesn’t impact on the performance.
Registry cleaners do not feature at all on my must have list of programs and this article is a perfect example of why people should not be using them, backups or no backups available in the program, I still steer far away from them.
Exported my reg and it’s 380mb. So, deleting even thousands of strings from the reg with a cleaner is equivalent to snipping off a small corner of page 257 of the Sunday edition of the LA Times.
Over the years, I’ve run full diagnostic performance tests before and after running cleaners. Zero improvement. Complete waste and high risk.
My first year of computing, registry cleaners were being recommended by the respected magazines. But using a highly rated one resulted in my having to reinstall Windows. After which a very smart tech support rep told me the same thing Leo and Bob Price say in this article, don’t use registry cleaners. Also that each registry entry takes such a miniscule amount of space on the computer that it is not even worth the trouble to remove. Since then will occasionally run C Cleaner’s reg cleaner, scan only. If there is an entry I know is safe to remove, ie, regarding a program no longer on the computer, will export the key (back it up) and delete only that key. The rest are left alone. The results – no loss of computer speed over several years, and no further problem necessitating a reinstall of the OS.
I had the same experience as Bonita. After running the registry cleaner, nothing worked properly. I tried the restore, but it didn’t work – I’ve never had one work for me. I ended up having to completely rebuild the HD.
I’ve run a few of the free scans and then looked for whatever the scan said needed to be changed. I couldn’t find those entries anywhere in the registry. So I really don’t trust them much.
Although this is too late for the original poster, I follow the idea that if it’s not causing problems, leave it alone. I’m not getting any registry error messages, so there’s no reason for me to “clean” the registry. And, as Bob said, it isn’t taking up enough room to be concerned about it.