Replace "space" with"underscore" in folder name - recursively

I have multiple folders with space in the folder name, and need to replace the space with underscore.
Found a simple batch file to do that

From this:

To this:

Script:
@ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION

FOR /D %%d IN (*) DO (
   SET "NAME=%%d"
   SET "NEWNAME=!NAME: =_!"
   IF NOT "!NAME!"=="!NEWNAME!" rename "!NAME!" "!NEWNAME!"
)
pause
exit

Disk drive is write protected, Unable to create file with File system error (65535)

Some simptoms:


Unable to create file with File system error (65535)

Whenever I try to create new file in my one of my system drives it is displaying "Unable to create file xxxx.txt". File system error(65535) Previously I was able to create/delete files.

Now every thing related to file operations are getting failed (create/delete/modify).

For file modify following error message is displayed "The drive cannot fine sector requested".



Second hard drive says write-protected
I've got a new 2008 enterprise terminal server. I've installed all my apps to the 2nd hard drive. Now for no reason, I can't write to the drive and my apps can't either as they all crash as soon as they need to.

I get this exact error when simply trying to create a directory in the root of the drive:

"The disk is write-protected.

Remove the write-protection or use another disk."

I'm logging in as the local admin, domain admin makes no diff. I've also given full permissions to "everyone" with no luck. How the heck can I fix this bugger?

Solution:

It could be that the ReadOnly flag is on, do the following


on cmd prompt launch "diskpart.exe"

on the diskpart prompt, do the following

LIST DISK

This will give you a list of all disks in your system
Note down the number of your problem disk, then do the folloiwng

SELECT DISK x

Where x is the number of your problem disk, then do the following

DETAIL DISK

This will list all the details of your problem disk
Check if the ReadOnly flag is set to Yes

If the ReadOnly flag is set to Yes, do the follwing

ATTR DISK CLEAR READONLY

This should clear the flag on the disk, please retry your disk operations

If ths does not solve it, we have another flag on the volume, same command, but now on volume:

LIST VOLUME

SELECT VOLUME x

DETAIL VOLUME

ATTR VOLUME CLEAR READONLY

powershell script to get number of CPU and Memory

takes input list of servers from C:\servers.txt and output the result to C:\ram-cpu.csv

make sure your powershell/powerCLI has admin rights


get-wmiobject Win32_ComputerSystem -computer (gc C:\servers.txt) | select Name,@{name="TotalPhysicalMemory(MB)";expression={($_.TotalPhysicalMemory/1mb).tostring("N0")}},NumberOfProcessors | export-csv C:\ram-cpu.csv

Get logical disk layout from OS level (windows)

run this in powerCLI / powershell. make sure you have admin rights (elevated for the powerCLI/powershell)

it takes list of servers from c:\servers.txt and output the result to c:\Disk-GB.csv

gwmi -query "SELECT SystemName,Caption,VolumeName,Size,Freespace FROM win32_logicaldisk WHERE DriveType=3" -computer (gc c:\servers.txt) | Select-Object SystemName,Caption,VolumeName,@{Name="Size(GB)"; Expression={"{0:N2}" -f ($_.Size/1GB)}},@{Name="Freespace(GB)"; Expression={"{0:N2}" -f ($_.Freespace/1GB)}}, @{n="% Free";e={"{0:P2}" -f ([long]$_.FreeSpace/[long]$_.Size)}} | sort "Systemname","caption" | export-csv c:\Disk-GB.csv

Custom VM report, output to CSV

Note: VC, Template and Description is for manual entry, they don't have any data :)

function Get-myReport {
#sample: get-content test.txt | %{ Get-myReport $_ } | export-csv C:\testout.csv -notypeinformation

param ($VM)
$report = @()
$row = "" | select VC, Cluster, Name, Template, ResourcePool, NumCPU, RAMSizeGB, D_DriveSizeGB, VLAN, Application, BusinessUnit, Category, Support, Description


$v = get-vm $VM
$VLAN = get-virtualportgroup -vm $VM
$app = get-vm -Name $VM | get-annotation | where-object {$_.Name -eq "Application"}
$unit = get-vm -Name $VM | get-annotation | where-object {$_.Name -eq "business unit"}
$category = get-vm -Name $VM | get-annotation | where-object {$_.Name -eq "category"}
$support = get-vm -Name $VM | get-annotation | where-object {$_.Name -eq "support"}
$row.Cluster = $v.vmhost.parent.name
$row.Name = $VM
$row.ResourcePool = $v.resourcepool.name
$row.NumCPU = $v.NumCpu
$row.RAMSizeGB = $v.MemoryMB / 1024
$row.D_DriveSizeGB = ""
$row.VLAN = $VLAN.name
$row.Application = $app.value
$row.BusinessUnit = $unit.value
$row.Category = $category.value
$row.Support = $support.value

$DriveD = Get-mVMdriveD $VM
$row.D_DriveSizeGB = $DriveD.Size

$report += $row

$report

}


function Get-mVMdriveD {
param ($VM)
gwmi -query "SELECT Caption, Size FROM win32_logicaldisk WHERE DriveType=3" -computer $VM | where-object { $_.Caption -eq "D:" } | select-object @{Name="Size"; Expression={"{0:N0}" -f ($_.Size/1GB)}}

}

Windows Slowdown, Investigated and Identified

reblogging from http://randomascii.wordpress.com/2012/09/04/windows-slowdown-investigated-and-identified/

all credits goes to original author, I'm merely archiving it for my personal future reference.
in short, if your free memory is high, and cached is low, there's a culprit in there.