Category Archives: Windows

Windows gadgets / tips / tricks

MX Linux 18 setup notes

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I tried Ubuntu on my old laptop, but it was unbearably much slower than that Windows 7 so I was looking for lightweight options. After some shopping, I settled on MX Linux as the drivers worked right of out the box for the hardware and it gave me the best user experience so far.

Other than responsiveness, the deciding factor that moves me away from Ubuntu is the amount work required to get the basic things working out of the box. Internationalization is almost fully configured in MX Linux, while I had to jump a few hoops to get the VL Gothic (Japanese) font in and struggled to get the IME to switch using Ctrl+Space / Ctrl+Shift (or any default shortcut keys) like in Windows. In MX Linux, they are the defaults right away.

I was really turned off by the fact that Ubuntu’s (minimal install) default Archive Manager is half-working out of the box: I get weird errors and partial success extracting RAR files because unrar was not installed by default! It just showed the lack of consideration about user experience.

MX Linux defaults to ibus, which works right out of the box with mozc (Japanese) language support. But I’d like to have a Cantonese IME that allows me to swear (the ibus-table-cantonese package was censored), so I opted for Andrew Choi’s CAP, which runs on fcitx. He used to have an iBus version, but it was a decade ago and I couldn’t get it to install.

Turns out it’s not that MX Linux is not that prepared when you want to use Fctix. None of the languages shows up when I tried to add an IME! After a lot of googling, I realized it requires im-config, and you need to install zenity before installing im-config!

After that fcitx works like a charm: mozc, CAP works in harmony, and I can turn the IME on/off by Ctrl+Space and switch between IMEs using Ctrl+Shift (just like in the old days)

EDIT: After all the praise I have on MX Linux. I noticed it overlooked something very basic! It does not make you configure timezone during setup and it’s not easy to change it! To do it the GUI way, first you have to go to “MX Time Settings”, and you have to type in the EXACT timezone string (TZ database name)! Geeze! It’s so caveman that we still have to do this in 2019!!

How did I noticed that I forgot to change the timezone? I realized the time in my Windows keeps getting changed (suspiciously a time-zone offset like difference) after I booted into MX Linux and boot back to Windows. That’s insidious!

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Getting MX Linux Samba to work naturally with Windows Network

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I normally disable “Computer Browser” service in Windows by default because multiple computers having it on causes errors showing up in event log complaining there are multiple masters, and it’s not necessary for my simple home network because I’m just using a workgroup (no domain controller).

However, today I found out that even after setting up MX Linux’s Samba correctly (see below), if none of the computers on my windows network runs “Computer Browser”, my Windows computer name will not show up in “Thunar File Manager” although I can access it with smb://, and linux computers running Samba server shows up fine.

There’s also another twist to get the SMB client to work in Thunar File Manager. Despite smbtree works right out of the box (it detects the Windows shares), I’ll have to add this line in /etc/samba/smb.conf for the file manager to even probe the list of computers (not timeout):

name resolve order = bcast host

The point is to use broadcast lookup BEFORE dns lookup. DNS lookups for my local resources are often temperamental (could it be my router?), and I saw Linux Mint working with Windows briefly without these settings (editing smb.conf and also enabling “Computer Browser” service in Windows), but it failed today even after I re-installed MX Linux from scratch.

The other lines mentioned like client max protocol = NT1 and netbios name mentioned on the forums are not needed.

After configuring it. Restart smbd:

sudo /etc/init.d/smbd restart

 

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Malware deleting TrustedInstaller.exe, therefore crippling Windows

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My sister’s computer is was infected with a bunch of stubborn malware. Even after cleaning the offending files, a lot of things won’t wouldn’t work.

Windows Update, run sfc /scannow, or DISM /Online /Cleanup-Image fails with unknown reasons, which I found it somehow related to “Windows Module Installer” service not running.

I saw something weird in services.msc: “Windows Module Installer” doesn’t exist, but I know the underlying name is “TrustedIntaller” and noticed a service named as such is there, but it cannot be started, nor there are any descriptive information.

So I searched registry for “TrustedInstaller” and got to its entry. I noticed these two:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\TrustedInstaller]
"DisplayName"="@%SystemRoot%\\servicing\\TrustedInstaller.exe,-100"
"Description"="@%SystemRoot%\\servicing\\TrustedInstaller.exe,-101"

It means the meaningful names and descriptions I saw on services.msc are generated by calling the underlying  service executable file with switches. I checked my “C:\Windows\servicing” and found that “TrustedInstaller.exe” is not there at all! Of course you cannot start a service where the file does not exist at the promised path (ImagePath).

I searched the hard drive and found only one instance of the file stored somewhere (like C:\Windows\winsxs\x86_microsoft-windows-trustedinstaller_31bf3856ad364e35_6.1.7600.16385_none_90e389a7ae7a4b6c) and I tried to move the file to “C:\Windows\servicing”. However the ownership and permissions to write to “C:\Windows\servicing” goes to “TrustedInstaller” account, not “Administrator”, so I took the ownership, gave Administrator full rights, then move the file over.

Everything worked after that! Just the mere trick of deleting TrustedInstaller.exe is enough to make the user miserable trying to clean the system up! “sfc /scannow” or the like requires TrustedInstaller/WIM to be working in the first place, so you cannot use it to repair TrustedInstaller/WIM problems.

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Simple dialog box built in windows

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Back in the days, we use “net send” to display dialog boxes (I used it to chat with my friend after we dial up to the other’s computer).

Since Windows XP, there’s a more intuitive tool to do the same. It’s convenient if you want to add GUI interactions so that the user won’t ignore the text on the command prompt screen:

msg %SESSIONNAME% "your message goes here"

 

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