Category Archives: eng

Moving Google Chrome’s user data to another location

Imagine you want to move all Chrome’s user data to another location, for space and/or performance, or for other reason(s).

Imagine that the other location is at volume D:

You could do it be creating a symbolic link from the original default location (C:/Users/<your user name>/AppData/Local/Google/Chrome/User Data) to, for example, a “D:/chrome.userData” folder.

You’ll need to:
– close Chrome;
– know your Windows login user name (“user” in the example);
– decide to where you want to move the files.

The steps are:
– create the destination directory (e.g.: md “d:/chrome.userData”)
– using Windows Explorer, move (cut) C:/Users/user/AppData/Local/Google/Chrome/User Data to d:/chrome.userData
– then run the command
mklink /d “C:/Users/user/AppData/Local/Google/Chrome/User Data” “d:/chrome.userData”

That is it.

PowerShell in Windows Server 2008

To run PowerShell in Windows Server 2008, first make sure that feature is available, by checking the “Server Manager” or simply forcing its availability by running the following command from a regular command prompt:

start ocsetup MicrosoftWindowsPowerShell

Once the feature is installed, you can run it and take advantage of its power. For example, how about learning about all your drivers by typing

Get-WmiObject Win32_LogicalDisk

Useful.

How to create shortcuts to CLSIDs in Windows

If you want to access certain windows features, for example the “Tablet PC Settings” more directly and even if/when you are not using a Tablet PC, calling the correspondent Shell CLSID will do the job:

shell:::{80F3F1D5-FECA-45F3-BC32-752C152E456E}

But what if you want a desktop shortcut for it? The shortcut creator will not recognize such literal addresses.

The solution is to prefix with the Windows Explorer executable:

explorer shell:::{80F3F1D5-FECA-45F3-BC32-752C152E456E}

Here are some shortcuts which might come handy:

Action Center     {BB64F8A7-BEE7-4E1A-AB8D-7D8273F7FDB6}
Add Features     {BE122A0E-4503-11DA-8BDE-F66BAD1E3F3A}
Add Network Location     {D4480A50-BA28-11d1-8E75-00C04FA31A86}
Administrative Tools     {D20EA4E1-3957-11d2-A40B-0C5020524153}
Advanced User Accounts (netplwiz)     {7A9D77BD-5403-11d2-8785-2E0420524153}
Applications     {4234d49b-0245-4df3-b780-3893943456e1}
AutoPlay     {9C60DE1E-E5FC-40f4-A487-460851A8D915}
Biometric Devices (Windows 8 only)     {0142e4d0-fb7a-11dc-ba4a-000ffe7ab428}
BitLocker Drive Encryption     {D9EF8727-CAC2-4e60-809E-86F80A666C91}
Bluetooth Devices     {28803F59-3A75-4058-995F-4EE5503B023C}
Briefcase     {85BBD920-42AO-1069-A2E4-08002B30309D}
Color Management     {B2C761C6-29BC-4f19-9251-E6195265BAF1}
Command Folder     {437ff9c0-a07f-4fa0-af80-84b6c6440a16}
Common Places FS Folder     {d34a6ca6-62c2-4c34-8a7c-14709c1ad938}
Computer (This PC)     {20d04fe0-3aea-1069-a2d8-08002b30309d}
Connect To     {38A98528-6CBF-4CA9-8DC0-B1E1D10F7B1B}
Control Panel     {5399E694-6CE5-4D6C-8FCE-1D8870FDCBA0}
Control Panel (All Settings)     {F90C627B-7280-45DB-BC26-CCE7BDD620A4}
Control Panel (All Tasks)     {ED7BA470-8E54-465E-825C-99712043E01C}
Control Panel (Category view)     {26EE0668-A00A-44D7-9371-BEB064C98683}
Control Panel (Icons view)     {21EC2020-3AEA-1069-A2DD-08002B30309D}
Credential Manager     {1206F5F1-0569-412C-8FEC-3204630DFB70}
Date and Time     {E2E7934B-DCE5-43C4-9576-7FE4F75E7480}
Default Programs     {17cd9488-1228-4b2f-88ce-4298e93e0966} or
{E44E5D18-0652-4508-A4E2-8A090067BCB0}
delegate folder that appears in Computer     {b155bdf8-02f0-451e-9a26-ae317cfd7779}
Desktop folder     {B4BFCC3A-DB2C-424C-B029-7FE99A87C641}
Device Manager     {74246bfc-4c96-11d0-abef-0020af6b0b7a}
Devices and Printers     {A8A91A66-3A7D-4424-8D24-04E180695C7A}
Display     {C555438B-3C23-4769-A71F-B6D3D9B6053A}
Documents folder     {A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}
Downloads folder     {20D04FE0-3AEA-1069-A2D8-08002B30309D}::{374DE290-123F-4565-9164-39C4925E467B}
Ease of Access Center     {D555645E-D4F8-4c29-A827-D93C859C4F2A}
E-mail (default program)     {2559a1f5-21d7-11d4-bdaf-00c04f60b9f0}
Family Safety     {96AE8D84-A250-4520-95A5-A47A7E3C548B}
Favorites     {323CA680-C24D-4099-B94D-446DD2D7249E}
File History     {F6B6E965-E9B2-444B-9286-10C9152EDBC5}
Folder Options     {6DFD7C5C-2451-11d3-A299-00C04F8EF6AF}
Font Settings     {93412589-74D4-4E4E-AD0E-E0CB621440FD}
Fonts     {BD84B380-8CA2-1069-AB1D-08000948534}
Games Explorer     {ED228FDF-9EA8-4870-83b1-96b02CFE0D52}
Get Programs     {15eae92e-f17a-4431-9f28-805e482dafd4}
Help and Support     {2559a1f1-21d7-11d4-bdaf-00c04f60b9f0}
HomeGroup     {6785BFAC-9D2D-4be5-B7E2-59937E8FB80A} or
{67CA7650-96E6-4FDD-BB43-A8E774F73A57} or
{B4FB3F98-C1EA-428d-A78A-D1F5659CBA93}
Hyper-V Remote File Browsing     {0907616E-F5E6-48D8-9D61-A91C3D28106D}
Indexing Options     {87D66A43-7B11-4A28-9811-C86EE395ACF7}
Infared     {A0275511-0E86-4ECA-97C2-ECD8F1221D08}
Installed Updates     {d450a8a1-9568-45c7-9c0e-b4f9fb4537bd}
Internet Explorer (default browser)     {871C5380-42A0-1069-A2EA-08002B30309D}
Internet Options     {A3DD4F92-658A-410F-84FD-6FBBBEF2FFFE}
Keyboard Properties     {725BE8F7-668E-4C7B-8F90-46BDB0936430}
Language Settings     {BF782CC9-5A52-4A17-806C-2A894FFEEAC5}
Libraries     {031E4825-7B94-4dc3-B131-E946B44C8DD5}
Location Sensors     {E9950154-C418-419e-A90A-20C5287AE24B}
Media Servers     {289AF617-1CC3-42A6-926C-E6A863F0E3BA}
Mobility Center     {5ea4f148-308c-46d7-98a9-49041b1dd468}
Mouse Properties     {6C8EEC18-8D75-41B2-A177-8831D59D2D50}
Music folder     {1CF1260C-4DD0-4ebb-811F-33C572699FDE}
Network     {F02C1A0D-BE21-4350-88B0-7367FC96EF3C}
Network and Sharing Center     8E908FC9-BECC-40f6-915B-F4CA0E70D03D}
Network Connections     {7007ACC7-3202-11D1-AAD2-00805FC1270E} or
{992CFFA0-F557-101A-88EC-00DD010CCC48}
Networks Flyout (Connect To)     {38A98528-6CBF-4CA9-8DC0-B1E1D10F7B1B}
Network (WorkGroup)     {208D2C60-3AEA-1069-A2D7-08002B30309D}
Notification Area Icons     {05d7b0f4-2121-4eff-bf6b-ed3f69b894d9}
NVIDIA Control Panel (if installed)     {0bbca823-e77d-419e-9a44-5adec2c8eeb0}
Offline Files Folder     {AFDB1F70-2A4C-11d2-9039-00C04F8EEB3E}
Pen and Touch     {F82DF8F7-8B9F-442E-A48C-818EA735FF9B}
Performance Information and Tools (WEI)     {78F3955E-3B90-4184-BD14-5397C15F1EFC}
Personalization     {ED834ED6-4B5A-4bfe-8F11-A626DCB6A921}
Phone & Modem “Location Information”     {40419485-C444-4567-851A-2DD7BFA1684D}
Pictures folder     {3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}
Portable Devices     {35786D3C-B075-49b9-88DD-029876E11C01}
Power Options     {025A5937-A6BE-4686-A844-36FE4BEC8B6D}
Previous Versions Results Folder     {f8c2ab3b-17bc-41da-9758-339d7dbf2d88}
printhood delegate folder     {ed50fc29-b964-48a9-afb3-15ebb9b97f36}
Printers     {2227A280-3AEA-1069-A2DE-08002B30309D} or
{863aa9fd-42df-457b-8e4d-0de1b8015c60}
Programs and Features     {7b81be6a-ce2b-4676-a29e-eb907a5126c5}
Programs Folder     {7be9d83c-a729-4d97-b5a7-1b7313c39e0a}
Programs Folder and Fast Items     {865e5e76-ad83-4dca-a109-50dc2113ce9a}
Public Folder     {4336a54d-038b-4685-ab02-99bb52d3fb8b}
Recent Places     {22877a6d-37a1-461a-91b0-dbda5aaebc99}
Recovery     {9FE63AFD-59CF-4419-9775-ABCC3849F861}
Recycle Bin     {645FF040-5081-101B-9F08-00AA002F954E}
Region and Language     {62d8ed13-c9d0-4ce8-a914-47dd628fb1b0}
RemoteApp and Desktop Connections     {241D7C96-F8BF-4F85-B01F-E2B043341A4B}
Removable Storage Devices     {a6482830-08eb-41e2-84c1-73920c2badb9}
Results Folder     {2965e715-eb66-4719-b53f-1672673bbefa}
Run     {2559a1f3-21d7-11d4-bdaf-00c04f60b9f0}
Search Apps     {2559a1f8-21d7-11d4-bdaf-00c04f60b9f0}
Search Files     {2559a1f0-21d7-11d4-bdaf-00c04f60b9f0}
Search Results     {9343812e-1c37-4a49-a12e-4b2d810d956b}
Set Program Access and Defaults     {2559a1f7-21d7-11d4-bdaf-00c04f60b9f0}
Show Desktop     {3080F90D-D7AD-11D9-BD98-0000947B0257}
SkyDrive folder (Windows 8.1)     {8E74D236-7F35-4720-B138-1FED0B85EA75}
Sound     {F2DDFC82-8F12-4CDD-B7DC-D4FE1425AA4D}
Speech Recognition     {58E3C745-D971-4081-9034-86E34B30836A}
Storage Spaces     {F942C606-0914-47AB-BE56-1321B8035096}
Switch Between Windows     {3080F90E-D7AD-11D9-BD98-0000947B0257}
Sync Center     {9C73F5E5-7AE7-4E32-A8E8-8D23B85255BF}
Sync Setup Folder     {2E9E59C0-B437-4981-A647-9C34B9B90891}
System     {BB06C0E4-D293-4f75-8A90-CB05B6477EEE}
System Icons     {05d7b0f4-2121-4eff-bf6b-ed3f69b894d9} SystemIcons
Tablet PC Settings     {80F3F1D5-FECA-45F3-BC32-752C152E456E}
Taskbar Properties     {0DF44EAA-FF21-4412-828E-260A8728E7F1}
Text to Speech     {D17D1D6D-CC3F-4815-8FE3-607E7D5D10B3}
This PC (Computer)     {20d04fe0-3aea-1069-a2d8-08002b30309d}
Troubleshooting     {C58C4893-3BE0-4B45-ABB5-A63E4B8C8651}
User Accounts     {60632754-c523-4b62-b45c-4172da012619}
User Folder     {59031a47-3f72-44a7-89c5-5595fe6b30ee}
User Pinned     {1f3427c8-5c10-4210-aa03-2ee45287d668}
Videos folder     {A0953C92-50DC-43bf-BE83-3742FED03C9C}
Window Switcher (Flip-2D)     {3080F90E-D7AD-11D9-BD98-0000947B0257}
Windows Defender     {D8559EB9-20C0-410E-BEDA-7ED416AECC2A}
Windows Features     {67718415-c450-4f3c-bf8a-b487642dc39b}
Windows 7 File Recovery     {B98A2BEA-7D42-4558-8BD1-832F41BAC6FD}
Windows Firewall     {4026492F-2F69-46B8-B9BF-5654FC07E423}
Windows Mobility Center     {5ea4f148-308c-46d7-98a9-49041b1dd468}
Windows SideShow (Windows 8 only)     {E95A4861-D57A-4be1-AD0F-35267E261739}
Windows To Go     {8E0C279D-0BD1-43C3-9EBD-31C3DC5B8A77}
Windows Update     {36eef7db-88ad-4e81-ad49-0e313f0c35f8}
Work Folders (Windows 8.1)     {ECDB0924-4208-451E-8EE0-373C0956DE16}

Placing your Bitcoin data at a new location without any collateral effects

In Windows, by default, the Bitcoin client keeps its data directory at

%appdata%/bitcoin

It happens that this directory will grow, and grow… eventually reaching a size not admissible for being kept at the system’s main volume. Currently, March 2014, the Bitcoin data is ~21 GB, while Litecoin’s is ~2.7 GB. Too big for me. Not only the size might become an issue, but also the system’s perceived performance might be compromised, because the main volume is used for so many other operations that the reading/writing of the digital currencies’ data can have its negative impact.

One solution? Move the data folder to another drive, for example, a D: volume. Just cut/paste the %appdata%/bitcoin folder to D:.

But WAIT. If you do this, now you must start the Bitcoin client NOT via the usual shortcut, but via a custom shortcut that will point the software to the new location:

bitcoin-qt.exe -datadir=D:/bitcoin

Is there a better solution? Yes there is:

(1) Close any running Bitcoin client and/or server.

(2) Move %appdata%/bitcoin to D:

You’ll now have a D:/bitcoin folder which corresponds to the previous %appdata%/bitcoin folder.

(3) Create a symlink from %appdata%/bitcoin to D:/bitcoin

mklink /D %appdata%/Bitcoin D:/bitcoin

(4) Now you can launch your Bitcoin client the way you always did, that it will still find the %appdata%/bitcoin location, which however is actually located at D:/bitcoin and not at the main volume.

Was this useful?

Any donation is welcome at address 1nJRXEWXcbz585koZwjHrSjbbxrFPYKMg

bitcoin_receive_from_blog_1nJRXEWXcbz585koZwjHrSjbbxrFPYKMg

How to deal with the 11 pages limit in IOS

The iPad’s operating system (IOS) has a limit of 11 pages for apps. The first app you install whose icon can’t be represented inside those 11 pages, won’t appear at all and the only way it can be run, is to do a text search for it. It is an odd design decision, but it gets worse because even if you start creating “folders” and putting apps inside them, the “invisible” icons won’t automatically move and appear in the just freed space, as one might expect them to do.

One “solution” around the problem is simple: just shutdown the iPad and then turn it on again. On boot, IOS will populate any free space it finds with the previously “invisible” icons.

The Intelligent Plant

“The New Yorker” (TNY) Christmas 2013 edition is a favorite of mine; in fact, I can’t remember being so entertained by another TNY in a long time. At the very top of the list of reasons why I adored this particular edition, is one article, by Michael Pollan, titled “The Intelligent Plant”.

“The Intelligent Plant” is about ongoing research on plants’ adaptive behavior, the analogies that can eventually be made with animals, and the divide that some wording and expressions can cause, namely in “Mancuso et al”. vs “Alpi et al.”. Stefano Mancuso and Amedeo Alpi are both scientists researching plants but with different perspectives on how to approach, or how to word, their studies on plant behavior. Naturally many other scientists work on the field, and related fields, and these two names are highlighted by the TNY article only because of the way Pollan decided to structure it and do his interviews, and also because of the academic citations’ format, which when a paper has more than one author, tends to present the collective by identifying the first or the designated author (Alpi) followed by “the others” (et al.).

It happens that Mancuso makes a case for the appropriateness of wording his research with expressions such as “plant neurobiology”. The problem is that because plants have no literal, or animal-like, neurons, others find it inappropriate: “plant neurobiology” is famously criticized in a 2007 article published in “Trends in Plant Science”, by 36 scientists: Alpi A, Amrhein N, Bertl A, Blatt MR, Blumwald E, Cervone F, Dainty J, De Michelis MI, Epstein E, Galston AW, Goldsmith MH, Hawes C, Hell R, Hetherington A, Hofte H, Juergens G, Leaver CJ, Moroni A, Murphy A, Oparka K, Perata P, Quader H, Rausch T, Ritzenthaler C, Rivetta A, Robinson DG, Sanders D, Scheres B, Schumacher K, Sentenac H, Slayman CL, Soave C, Somerville C, Taiz L, and Thiel G, Wagner R..

Pollan’s article is so enjoyable because it refers experiments, facts and research on plants’ adaptive behavior, that most people aren’t aware of, and that are just astonishing: did you know that plants can make some animals help them?, and that they can fight back to the point of killing their animal predators?, that their behavior relatively to other plants is not always competitive and that they can communicate to help each other? Well I knew a little, learned more and, above all, got my plant curiosity spiced up to unprecedented levels :) mainly because I found there is a strong case to be made for bridging this research to forms of distributed intelligence in the animal kingdom, namely stigmergy-based.

Screenshot-2014-01-05_12.28.49

rFactor 2 is awesome

If there is one gaming genre that can be unfair to those really pushing ahead, it is the “racing” genre. Regular gamers are used to absurdly unrealistic software, where vehicles respond like they’ve done since the ZX Spectrum days, meaning like indestructible spaceships that make good use of the surrounding structures to stay on course. The average gamer can’t be bothered to learn about precision driving and delicate handling, using proper input devices. Surprisingly, professional game critics usually adhere to the same shallow standards: the “F1″ series from CodeMasters is a very good example of how ridiculously deceiving ratings and scores can be. The “F1″ games score high in most specialized publications and have been celebrated in BAFTA events (!), but they are less interactive than playing with a toy train in rails.

CodeMasters’ “F1″ looks wonderful, but plays horribly, tricking the user to think that he/she is in control, when in fact, the player’s freedom is severely limited; it is literally like driving on rails with narrow margins for anything creative. It is disgusting because for casual racers and other outsiders it appears a worthy experience. It is not a worthy experience, and it is unfair that the true racing simulators must flourish in niches, under the shadow of such miserable titles.

From my experience, one of the “true” simulators available today is “rFactor 2″ (RF2).  RF2 is fun, demanding and reasonably realistic. If you ever drove a competition car, you’ll probably notice the extra care: for example, tires start cold, then get warmer; tires will get flat spots if you lock them under braking; and the car will get damaged, and respond accordingly, even if in very subtle ways, if & when you hit obstacles.

RF2 tires’ physics is unique. I am not writing about different temperatures for each tire – I am writing about different temperatures across different regions of every tire! It feels “organic”, it feels true! The vehicles are responsive and the pedals truly analogue. It is literally a physical exercise to put consistent fast laps against 100% strong computer opponents: in fact, you’ll probably sweat and burn a significant amount of calories. For real!

rfactor2_1

Shameless, 3 seasons later

Last night I watched the first and second episodes of “Shameless”, three years after this TV series’ premier. I am still not sure what to think of it: should I continue watching it? From what I understand, season 4 is around the corner, starting this January.

“Shameless” wants to, at least, be funny and sexy, and it can be funny and sexy, but it travels an uncomfortable path to do so. For me, as a viewer, the first problem is the exaggerated number of characters: a family of eight, plus a network of friends, acquaintances, foes, and other orbital entities. I remember when I first watched “Breaking Bad” (BB) and how much I enjoyed the lengthy, credible, process of building Walter White and Jesse Pinkman… contrast this with “Shameless” and its gamut of people, thrown at you in the very first minutes, as creatures ranging from drunk to sober, young to old, gay to straight, smart to intelligent and dumb… it is a much different building process, eventually as effective as BB’s, but – again – I think it is too early to say.

At times, “Shameless” can remember “Californication”, which makes it unsuitable to watch with young kids around; it also often asks for viewer credit, as in “please endure a few more moments and this will feel right”. On the other hand, it is original, it features very good acting and, until now, I think no one fired a gun, which is oh so refreshing. It can get better. Will it get better?

shameless_season1

Shameless (USA) – Season 1 [DVD + UV Copy] [2012]

Shameless: The Complete Second Season [DVD] [Region 1] [US Import] [NTSC]

Shameless: Complete Third Season [DVD] [Region 1] [US Import] [NTSC]

Restart

New year, new site. This time I made the very difficult option to start from tabula rasa, saying goodbye to nearly 1 GB of data, corresponding to many posts since 1996. Of course there was no WordPress CMS in 1996: those were the days when I coded each post by hand, in plain HTML, and… it was fun, it really was. The Web has since become industrialized and personal sites like mine simply don’t stand a chance in the market of attention now; however I just want to rediscover the fun and the learning that can happen in a humble Web presence. So it all restarts, again.

arturmarques_dot_com_500x100