Because many readers reveal their computer responding slowly, I’m posting a summary checklist of basic things you can do to resolve the Dns_error_no_zone_infoproblem, and briefly discussing the three most frequent causes : malware, uncontrolled applications, and lack of care.
Perhaps the greatest contributor to a poorly performing computer is malware.
Stage 1. Update the definitions of your antivirus and run a complete scan of your hard drive in Safe Mode. Resolve any unfixable issues. Note that some infections need additional steps until they can be removed; generally a websearch will find specific instructions or a particular removal tool. If you fail to find a answer, use the Bc forums to obtain help.
2. If the slowness is unexpected, and you’ve recently downloaded an application, the issue may reside there. Test this by entirely eliminating it. A wise user will normally perform a internet search about the application before getting because in most cases, any possible issue with malware or inferior performance will have appeared.
Action three. Adware and Spyware can dramatically impact your computer’s functionality, and these are around the Web.
Update the explanations of your antispyware programs and check your hard drives in Safe Mode. Seasoned customers will frequently operate two or three of the programs, because each business has its own standards for what constitutes spyware and will simply search against their own set. (A record of very good, free anti spyware programs is provided by BC). Again, resolve any open issues before proceeding to the next step.
For further reading about Malware and some malware removal applications, use BC’s Tutorial section; most of the applications have very good Help documents that describe how they operate also as the distinctive features of each.
Step 4. Evaluation programs that self-launch on startup. You computer may become a arena for your attention. Many programs, for instance, install a quick-launch feature which permits them to be opened swiftly; other programs will include an automatic update feature that requires them to be operating in the background. Each of these decreases your debut Windows and each needs a little bit of sources while your computer is running.
In case you are uncertain about what could be safely removed, remember that BC maintains a very complete Startup Database that includes info about whether the inquired item is required, elective, or not needed.
At-the same time, remember that all those icons in your Desktop also take a small number of trunk time to set themselves.
Lack of Maintenance
Stage 5. Clean-up your hard drive (preparation for Step 7). Delete unused applications and exchange old files to your CD. Unplayed games, lots of family pictures, zipped files that you have already opened, applications you have not used in two years, software for the old printer you put away last year—these are a few types of files you can delete.
(Note for advanced level users: some specialists would contain the added maintenance stage of cleaning up the Windows registry, and there are plenty of apps to help do that. For the most part, registry maintenance will not make a vital difference, and unless you’re very comfortable with Windows, and carefully make backups of the registry, you can do serious damage by making registry modifications, so this step isn’t contained
Action 6. Run scandisk / checkdisk in Safe Mode. Have it fix Dns_error_no_zone_info.
Step 7. Defragment your pc.
Hopefully, since you have have finished, you’ll find a marked enhancement in pc performance.