Having read some useful topics on the internet, I decided to try non-cached Exchange mode in Outlook. After disabling caching for my account, it still kept the OST file, even after forced deletion. Then I noticed some offline folders were being kept.

Firewall could not start because of error 1068 - some dependency failed to start. Outgoing connections work, incoming are blocked. I drilled down to Windows Firewall Authorization Driver malfunction.

Somehow my Windows 7 partially remapped a drive letter to another entity. It happened suddenly with some unexpected behavior. I noticed it when it could no longer connect to a network share. I removed the mapping and tried recreating with no success. The drive could not be deleted. Restarted, the drive is not mapped, yet it's still not available.

I got this 'Invalid class' error when querying disk performance data (Win32_PerfFormattedData_PerfDisk_LogicalDisk). The server was running Windows 2003 R2 Std x64 SP2.

For those who don't like to read stories, here's the extract Proceed with installation, even despite it appears to be a clean install. In the end you will get a working version, with all configuration preserved.

I recently upgraded to a larger hard drive and went from 1TB -> 2TB. Now the task was to make backup task in Acronis use the new location. I created new destination folder, moved all previous backups there. Then I changed Acronis backup task to do backups to the new place. Quite obvious so far, isn't it? Not with Acronis.

Some time ago I researched compression in various systems, ranging from software archivers (like WinRAR, WinZip etc.) to database solutions (like Oracle data compression). Then I figured there is one more type of compression that I did not touch yet - NTFS compression. People on the net say it's pretty much useless, still I decided to give it a try.

If you are like me, and wonder where all the space on C drive went, you might have also stumbled across hiberfil.sys file, which is usually taking a couple of gigs. This is especially important if you are running your system on precious SSD space.

Just updated my TortoiseSVN client at home from 1.6.9 to 1.6.11 and found that I can no longer use overlay icons, either in Explorer or in Total Commander (more used to the latter). It appeared as if Tortoise shell extension was not loaded. I tried a restart - same thing.

You should be reading this article if you are seeing any of the two (or both) screens - Windows Security / Your credentials did not work. Your system administrator does not allow the use of default credentials to log on to the remote computer XXXXX because its identity is not fully verified. Please enter new credentials. AND/OR Remote Desktop Connection. Your system administrator does not allow you to connect to this remote computer. For assistance, contact your system administrator or technical support.