Extremely slow performance with VeraCrypt
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Ever since I fully encrypted my C: drive, I've been getting painfully slow disk performance. My system is now close to unusable.
The drive is a regular hard drive, encrypted with AES (hardware acceleration supported and switched on). Processor is an i5-4670K, with 32G of RAM.
What am I doing wrong?
Last edit: Ashley Yakeley 2019-09-29
For the record: I had severe performance problems with an SSD for system (W7x64) and harddisk for data, both with VC. Disabling MS Security Essentials' on-access malware scans helped very much. After some months, I reactivated the scanner, and performance is still okay. There were/are other reasons like icon overlays and cloud file services clients watching and scanning everything, and others. There are dozens of things that can make Windows crawl.
lol it has nothing to do with antivirus , nvme ssds are known issue by the developer but dont know when and if he will fix it
The initial post is about a harddisk. Harddisk performance was unbearable in my case, too. My SSD could compensate the problems well. The virus scanner wasn't the only troublemaker. Windows did not cache mass storage any more. Explorer windows locked up because... I don't know. Indexing service malfunctions like twenty years ago. Etc.
With the amazing progress in persistent storage, bottlenecks at many places have to be optimized away. So use hardware encryption in the hope the manufacturers do not botch that again.