Last month I was asked to speed up a slow Microsoft Windows 11 computer.  The owner felt something was infecting it and his resident security software missed it.  One of the procedures I like to use is scanning for malware when Windows is dormant.  This is done with a Linux-based CD or USB drive with a virus scanner on it. On this computer I discovered the hard drive was encrypted with bit-locker.  It wouldn’t let me access it to scan because I didn’t have the key and neither did the owner.  

So I had to do things differently within Windows 11.  I downloaded another virus-scanner and scanned it and found nothing dangerous.  If you use bit-locker on a hard drive make sure you save the key for the encryption or you may be locked out of it.

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