ITEXVN

  A while back i wrote a post about data deduplication in 2012…. generally a very good feature, but as that specific post talked about, there was a collection of .iso and compressed data where not only did dedup not save me anything, it actually used up more space in the dedup folder than the orginal data size (which i found a little odd) Today i got around to doing something about this and found Disabling data deduplication (via GUI or powershell) only stops further deduplication from occuring – but data that has already been deduplicated will remain deduplicated In order to “move” (re-hydrate ?) the data back to the original files and out of the deduplication store, use the powershell command  start-dedupjob -Volume <VolumeLetter> -Type Unoptimization You can check the status on where this is at by using  get-dedupjob , or, i like using TreeSize which shows the size on disk of specific files…. including the deduplication chunks At this stage – i noticed the o...

  Optimize Storage In Windows To Optimize the Storage in Windows Server 2012, 2012 R2, 2016 and 2019 Windows PowerShell cmdlet is available. It provides the ability to manually perform actions like TRIM, Defragment, etc. TRIM – The parameter is  ReTrim  which generates TRIM and Unmap hints for all currently unused sectors of a volume. Defrag – The parameter defrag/L performs the same TRIM (-ReTrim) as the Optimize-Storage PowerShell cmdlet

I personally have used other ways to do this. Manipulating some registry settings in combination with a safe boot before booting normally does the trick as well. This works with both SATA SSD and M.2 NVMe drives and it enables relatively fast switching between back and forth between AHCI and RAID. I have described this method below.  I have also tried the same process used to switch from RAD to AHCI and that works as well. Switch to safe boot Reboot into BIOS Change from AHCI to RAID in the BIOS Boot into safe mode Turn off safe mode and reboot normally again Nothing else and that also did the trick, just like with moving from RAID to AHCI.  So the link above and my step by step below is here for completeness. You have options in case one of them doesn’t work! Step by step AHCI to RAID registry method This procedure I describe below works on Windows 10 1803/1809 and has been tested on Dell Latitude E6220 an XPS 13 9360. Editing the registry is...