The âWindows Installer service could not be accessedâ error message shows
up. This problem started once I downloaded a registry cleaner. Now Iâm 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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Error after running registry cleaner
Well, I do have an article âHow do I fix the Windows Installer service could not be accessed?â and Iâll certainly start by pointing you there.
But, what I want to do is point out that this happened after you ran a registry cleaner.
This is exactly why I donât recommend you run registry cleaners. They are simply too dangerous. They can simply cause too many problems of unknown origins.
Fully system backup
Now, what I hope you did was to have taken a full system backup prior to running the registry cleaner. If you had, you would simply be able to restore your machine to the state that it was in prior to running the registry cleaner and get on with your life.
If you are running the registry cleaner to resolve a specific problem, then letâs diagnose that problem instead of running a registry cleaner.
Periodic registry cleaning?
Finally, if youâre running a registry cleaner just because you think itâs good to clean your registry periodically? Well, this is why itâs not.
I actually have an article, âWhatâs the best registry cleaner?â and in my opinion the best registry cleaner is no registry cleaner at all. Again, specifically because this kind of thing happens.
(Transcript lightly edited for readability.)
Next from Answercast 88- How should I password protect an external drive?
Iâm not as convinced as you are that registry cleaners arenât useful. But the only one I would use on a clientâs 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 wasnât a problem with the registry in the first place so why risk it anyway. Using buzzwords such as âFixâ, âRepairâ, âCritical Errorsâ and so on, they mean nothing â 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 doesnât 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 itâs 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, Iâve 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, donât 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 Cleanerâs 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 â 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 didnât work â Iâve never had one work for me. I ended up having to completely rebuild the HD.
Iâve run a few of the free scans and then looked for whatever the scan said needed to be changed. I couldnât find those entries anywhere in the registry. So I really donât trust them much.
Although this is too late for the original poster, I follow the idea that if itâs not causing problems, leave it alone. Iâm not getting any registry error messages, so thereâs no reason for me to âcleanâ the registry. And, as Bob said, it isnât taking up enough room to be concerned about it.