Revision as of 21:18, 15 August 2021 edit Xpclient (talk \| contribs) Extended confirmed users, Pending changes reviewers, Rollbackers 4,511 edits →NVM Express: NVMe and TRIM for USB and NVMe ← Previous edit		Revision as of 21:21, 15 August 2021 edit undo Xpclient (talk \| contribs) Extended confirmed users, Pending changes reviewers, Rollbackers 4,511 edits m →NVM Express: Correct word Next edit →
Line 286: Windows 8.1 also supports the [[TRIM (computing)\|TRIM]] command for PCI Express SSDs based on [[NVM Express\|NVMe]] (Windows 7 supported TRIM only for [[AHCI]]/[[SATA]]) drives and only the ones which were connected internally via the [[M.2]] or SATA/[[Parallel ATA\|IDE]] connectors. Windows 8.1 supports the [[SCSI]] unmap command which is a full analog of the SATA TRIM command for devices that use the SCSI driver stack. If external SSD drives as well as the device [[firmware]] in the bridge chip both support TRIM, Windows 8.1 can perform a TRIM operation on these external SATA and NVMe SSDs that connect via [[USB]] as long as they use the [[USB Attached SCSI]] Protocol (UASP). Windows 8.1 also introduces a manual TRIM function via [[Microsoft Drive Optimizer]] which can perform an on-demand user-requested TRIM ~~function~~operation on internal and external SSDs. Windows 7 only had automatic TRIM for internal SATA SSDs built into system operations such as Delete, Format etc. ==See also==

Features new to Windows 8: Difference between revisions