By default, disk write caching is enabled in Windows 10 for internal drives. For external drives, it is disabled, so they are optimized for quick removal. While disk write caching improves system performance, it can lead to data loss due to power outage or another hardware failure.

Should I disable write caching on SSD?

Yes, it is safe — but it will slow your drive writes. It is almost always best to enable write caching on SSDs for consumer use as it allows data to be initially stored in DRAM or SLC NAND and then written to the drive NAND, which accelerates writes.

What is turn off Windows Write cache buffer?

In the case of a hard drive, the operating system flushes commands to a disk’s on-board cache. … If you’re more concerned with performance than the integrity of your data, turning off write-cache buffer flushing skips that extra command to flush the internal RAM buffer.