All previous versions of Windows 10 were very intensive with Disc Usage when it came to indexing search results, displaying notifications and using browsers such as Google Chrome. This was particularly prevalent when using a Hard Drive with it being throttled at 100 % Disk Usage. Microsoft have finally addressed this feedback:
Back in the summer of 2018, a small group of Windows Insiders did something that we don’t typically recommend. They quietly turned off the Windows Search indexer on their PCs. Luckily for us, they also took us up on our request to explain why. The feedback they provided led to some of the most significant improvements we’ve made recently to the Windows Search experience.
Whenever a Windows Insider disabled Windows Search, a message would pop up on the screen asking why. Insiders gave many reasons for turning off the indexer, but it boiled down to three key areas: high disk and CPU usage, general performance issues, and the indexer didn’t seem valuable to them.
I decided to take the old low specification OptiPlex 790 I had lying around at home which has:
- 2nd Generation Intel Processor
- 4 GB RAM
- 7200 RPM Mechanical Hard Drive
And compared the performance with Windows 10 Version 2004 with the previous build Windows 10 Version 1909. Both have a clean install and the performance difference doing a menial task such as watching a YouTube video with a Chromium based Browser is substantial: